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What is Fault Code P1122   Fault Code P1122 stands for "Throttle Position (TPS) Sensor Circuit Intermittent Low Voltage". This Fault indicates a problem with the electrical circuit of the throttle position sensor (TPS). It usually occurs because the voltage from the sensor is below the expected level. This leads to the correct data not being transmitted to the vehicle's engine control unit (ECU), which records this as a Fault.   Causes of Fault Code P1122   Possible causes of Fault code P1122:   1. Throttle Position Sensor (TPS) Malfunctions Sensor Wear: TPS can wear down over time, sending false or erratic voltage signals. Improper Calibration: Disruption of the sensor's settings can cause the signal to fall outside the ECU's accepted ranges. Physical Damage: TPS may be physically damaged (e.g., exposure to hard impacts or extreme heat). 2. Electrical Problems Wire Harness Breakage or Damage:  The wire harnesses from the TPS to the ECU may be broken, short-circuited, or oxidized. Connector Problems: Loosening or rusting of the TPS's electrical ports can prevent the signal from being transmitted. Low or High Voltage: Low voltage (usually below 0.5V) or high voltage (above 4.5V) in the TPS circuit will prevent the sensor from working correctly. 3. Throttle Mechanical Problems Throttle Blockage: Carbon deposits or dirt can jam the throttle valve, causing the sensor to detect incorrect position. Mechanical Wear: Wear of the fittings of the throttle valve can prevent the sensor from working correctly. Jamming or Uneven Movement: If the throttle does not open and close properly, the TPS may send false signals. 4. Engine Control Unit (ECU) Problems ECU Misreading the Sensor: The ECU may not be able to properly interpret the signal from the TPS. ECU Software Issues: Software Faults can cause the sensor signal to be detected out of range. 5. Incorrect Sensor Mounting Improper Placement: If the TPS is not mounted in the correct position, the sensor may send the wrong signal. Incompatible Part: Installing an improper TPS in the vehicle may cause the voltage ranges to be mismatched. 6. Other Related Sensor or System Issues Accelerator Pedal Sensor (APP) Problems: The coordination between the throttle position sensor and the accelerator pedal position sensor may be impaired. Defective Transmission Control Module (TCM): The TCM may not be able to correctly detect the throttle position. Distorted Air Flow Sensor (MAF): Erroneous data from the MAF sensor can lead to incorrect detection of throttle position. 7. Operating and Operating Conditions of the Vehicle Extreme Temperature or Humidity: Excessive temperature can affect the internal components of the sensor, causing erroneous signals. Improper Maintenance: If the throttle system is not cleaned regularly, carbon deposits can affect sensor performance. The most common causes of Fault code P1122 are associated with a malfunction of the TPS, problems with cable connections, or mechanical problems with the throttle system. This type of Fault can seriously affect the performance of the vehicle and increase fuel consumption. Therefore, it is recommended to contact a specialist mechanic or authorized service for diagnosis and solution of the Fault. P1122 Symptoms of Fault Code P1122   Common symptoms of Fault code P1122:   1. Decline in Engine Performance Acceleration Problems: When the accelerator pedal is pressed, the vehicle does not accelerate properly or reacts with a delay. Unbalanced Power Generation: The vehicle may show a sudden loss of power or uneven acceleration during acceleration. Low Engine Power: Engine power may decrease when the throttle is not operating in the correct position. 2. Fuel Consumption Issues Increased Fuel Consumption: An incorrect reading of the throttle position can cause the engine to fail to adjust the fuel-air mixture correctly, leading to excessive fuel consumption. 3. Engine Fault Light (MIL) Check Engine Lamp: When the engine control unit detects a problem with the throttle position sensor, it turns on the engine fault light. 4. Irregular idling Idle Fluctuation: When the vehicle is idling, fluctuations in engine speed may occur. Idle Stop: When the sensor data is not accurate, the engine may suddenly stop (stall) at idle. 5. Problems with Accelerator Pedal Response Incorrect Throttle Response: When the accelerator pedal is depressed, the vehicle does not react properly; either sudden accelerations or insufficient response may occur. Throttle Can Feel "Clogged": While driving, it can be felt that the accelerator pedal is working as if it has "seized". 6. Exhaust Problems Black Smoke from the Exhaust: When the throttle position is detected incorrectly, the air-fuel mixture may deteriorate, and the unburned fuel may come out of the exhaust as black smoke. 7. Problems with Transmission Behavior Shifting Problems: Incorrect readings in the throttle position can disrupt the gearshift timing of the transmission. High RPVING: The engine may run at too high rpm because it does not correctly detect the throttle position. 8. The engine can go into safety mode Safety (Limp) Mode: If the ECU detects a serious fault in the sensor, it can put the vehicle into safety mode to protect the engine. In this case, the car runs at low power, and acceleration is limited. 9. Vibration and Vibration Engine Vibrations: Vibration may be felt in the vehicle while driving due to unstable operation of the engine. Uneven Driving: The vehicle may move forward in a jerky manner due to the incorrect opening-closing ratio of the throttle. 10. Exhaust Emission Issues High Emission Values: Incorrect air-fuel mixture can increase the emission values of the vehicle and cause problems in exhaust inspection.   How to Fix   You can follow the steps below to fix the Fault code P1122:   1. Verifying the Fault Code with the OBD-II Scan Device Verify Fault codes:  First, verify the Fault code P1122 and any other related Fault codes using an OBD-II scanner. In some cases, other sensors or systems may also be affected. 2. Checking the Throttle Position Sensor Visually Inspect the Sensor: Physical Damage: Check if the TPS is physically damaged. Check for any loosening or breakage, especially in the wiring connections or at the mounting location of the sensor. Check the Contact Status:  Dirt or oxidation at the ports can cause the sensor to not work correctly. Clean the ports, if any. Check the Throttle Clamp and Valve: If the throttle is not moving properly or is dirty, the TPS sensor may send false signals. Clean the throttle valve and clamp. 3. Electrical Control of Throttle Position Sensor Voltage Control: Check the voltage of the TPS with a multimeter. Most sensors must operate within a certain voltage range (usually between 0.5V and 4.5V). If the voltage of the TPS is outside the specified range, the sensor may be faulty. Cable Connections: Check if the wires in the sensor's connections are broken, loose, or oxidized. If there is any damage to the cables, repair or replace them. 4. Replacing the Throttle Position Sensor Sensor Replacement: If you detect physical damage or wear on the throttle position sensor, it will be necessary to replace the sensor. The new sensor must be installed properly within the manufacturer's specified voltage range. 5. Check Transmission and Engine Control Module (ECU) ECU Software: Check if the ECU is working correctly. Sometimes software Faults can misinterpret sensor data. If a software update is required, an update can be made at an authorized service. Transmission Control Module (TCM): If there are gear shifts or power transmission problems with the transmission, make sure that the transmission control module is working correctly. 6. Throttle Cleaning Clean the Throttle: If the throttle valve is dirty, this can lead to the sensor reading inaccurate data. By cleaning the throttle system, remove blockages and carbon deposits. 7. Transmission Fluid and Engine Status Check Transmission Fluid Level: A low transmission fluid level or dirty fluid can cause problems with gear changes. Check the level and quality of the liquid, replace if necessary. Review the Engine: Make sure the engine is working properly. If there is any imbalance in the engine operation, the data from the TPS sensor may not be interpreted correctly. 8. Resetting Electronic Systems Clear Fault Code: After the repairs are made, clear the Fault code with the OBD-II device and restart the engine. Take a Test Drive: Once you've cleared the Fault code, take your vehicle for a test drive. If the car is running properly and the engine fault lamp is not on, then the problem is solved. The Fault code P1122 usually refers to a problem with the throttle position sensor (TPS). By following the steps mentioned above, you can check the sensor, its connections, and the engine and transmission systems, as well as intervene in defective parts if necessary. If the problem persists, it would be best to seek help from a specialized technician, as there may be a more complex problem with the vehicle's electronic systems.

What is P0344 Fault-Error Code?   The P0344 Fault-Error Code refers to the "Camshaft Position Sensor 'A' Circuit Intermittent" problem. This fault code indicates that the engine control module (ECM) or engine control unit (ECU) has detected an intermittent signal from the camshaft position sensor 'A' circuit. P0344   Camshaft Position Sensor 'A' Circuit: This indicates the specific camshaft position sensor is experiencing an intermittent signal issue. In some vehicles, 'A', 'B' etc. are used to distinguish between them. There may be more than one camshaft position sensor labeled as . 'A' Generally refers to the intake camshaft. Intermittent Signal: This indicates that the voltage signal from the camshaft position sensor 'A' fluctuates or drops intermittently rather than providing a consistent signal to the ECM/ECU.   What are the symptoms of P0344 Fault/Error Code?   Some common symptoms of fault/error code P0344 are:   Engine Malfunction Light Turns On: The most noticeable sign of the P0344 fault code is the engine malfunction light on the vehicle's instrument panel. Engine Misfires or Rough Idle: A faulty camshaft position sensor 'A' can cause the engine to misfire or idle rough. You may notice the engine hesitating, stumbling, or shaking. Poor Fuel Efficiency: An incorrect camshaft position sensor 'A' can lead to incorrect fuel injection timing, resulting in reduced fuel efficiency and increased fuel consumption over time. Engine Stalls or Hesitates: The engine may stall, hesitate, or exhibit poor acceleration due to incorrect camshaft timing readings. Hard Starting or Engine Failure to Start: If the camshaft position sensor 'A' fails completely or provides erratic readings, the engine may have difficulty starting or may not start at all. Reduced Engine Performance: The engine may lack power, respond slowly to throttle input, or exhibit poor acceleration due to incorrect camshaft timing. Transmission Shift Problems: In some cases, a faulty camshaft position sensor 'A' can affect the transmission's shift patterns, resulting in erratic or harsh shifts.   What could be the reasons for the P0344 Fault/Error Code?   P0344 malfunction/error code Various possible causes can trigger this error code, including:   Defective Camshaft Position Sensor 'A': The sensor itself may be faulty, damaged or malfunctioning, causing intermittent signal interruptions. Wiring Problems: The wiring harness connected to camshaft position sensor 'A' may have breaks, shorts or damage causing intermittent signal loss. Connector Problems: The electrical connector to the camshaft position sensor 'A' may be loose, damaged, corroded or improperly connected, which may affect signal integrity. Sensor Installation Issues: Improper installation or mounting of the camshaft position sensor 'A' can lead to poor connection or alignment issues, causing intermittent signal issues. ECM/ECU Problems: In rare cases, a faulty engine control module (ECM) or engine control unit (ECU) can cause intermittent signal interruptions from the camshaft position sensor 'A'. Mechanical Engine Problems: Physical damage or wear to the camshaft, camshaft phaser, or related components can affect the camshaft position sensor readings. Interference: Radio frequency interference (RFI) from other electronic components or devices can disrupt the signal from the camshaft position sensor 'A', causing intermittent signal problems. Environmental Factors: Exposure to extreme temperatures, humidity, or pollutants can damage the camshaft position sensor 'A' or its wiring, causing intermittent signal problems.   What Steps Should Be Followed to Resolve the P0344 Fault/Error Code?   Here are the steps to follow to resolve the P0344 malfunction/error code:   Diagnostic Scan: Use an OBD-II scanner to retrieve fault codes stored in the engine control module (ECM) or engine control unit (ECU). This will confirm error code P0344 and provide additional information about related codes or problems. Visual Inspection: Visually inspect the camshaft position sensor 'A', wiring harnesses and electrical connectors for any visible damage, corrosion or loose connections. Check the assembly of the sensor and make sure it is installed correctly. Sensor Test: Test the camshaft position sensor 'A' using a multimeter to measure its resistance and voltage output. Follow the manufacturer's specifications to ensure the sensor is operating correctly. Wiring and Connector Inspection: Inspect the wiring harness connected to camshaft position sensor 'A' for breaks, shorts or damage. Check electrical connectors for corrosion, damage or poor connections. Repair or replace faulty cables or connectors as necessary. Engine Timing Inspection: Check the timing belt or timing chain for wear, damage or misalignment. Verify that the camshaft timing marks are aligned correctly and the timing components are in good condition. ECM/ECU Check: Although rare, a faulty engine control module (ECM) or engine control unit (ECU) can cause a P0344 fault code. To rule out this possibility, thoroughly inspect the ECM/ECU and its connections. Clear Fault Codes: After identifying and repairing the problem, clear the fault codes using the OBD-II scanner and test the vehicle to make sure the problem is resolved.   What are the Long-Term Effects of the P0344 Fault/Error Code?   Here are some possible long-term consequences of not addressing the P0344 fault/error code immediately:   Poor Engine Performance: A faulty camshaft position sensor 'A' can cause improper timing of the engine valves, resulting in reduced engine performance, power and response. Poor Fuel Efficiency: Improper camshaft timing can cause improper fuel injection and combustion, resulting in reduced fuel efficiency and increased fuel consumption over time. Engine Misfires: The engine may experience frequent misfires, causing the engine to run rough, idle poorly, or even stall. This may cause further damage to the engine and its components. Increased Emissions: A faulty camshaft position sensor 'A' can affect the engine's emissions control systems, causing increased emissions of harmful pollutants and potentially failing the vehicle's emissions tests. Engine Damage: Continued operation with a faulty camshaft position sensor 'A' can cause serious engine damage, including damage to valves, pistons and other internal components. This can lead to costly repairs or even engine failure. Transmission Problems: Incorrect camshaft position readings can affect the transmission's shift patterns, resulting in erratic or harsh shifts, reduced transmission life, and possible transmission failure. Safety Concerns: Degraded engine performance, stalling or engine failure due to faulty camshaft position sensor 'A' can pose safety risks, especially when driving at high speeds or in heavy traffic. Increased Repair Costs: Ignoring the P0344 fault code can lead to additional damage to the engine and other related components, resulting in higher repair costs in the long run. To avoid these long-term effects, it is crucial to promptly address fault code P0344 by diagnosing the problem, determining the root cause, and performing any necessary repairs or replacements. It is best to consult a qualified mechanic or Service to ensure that the problem is resolved correctly. OUR RELATED ARTICLES camshaft position sensor

What is P0352 Fault-Error Code?   P0352 Fault-error Code: "Ignition Coil Primary 'B' / Secondary Circuit Fault"   The fault-error code P0352 indicates that your vehicle has detected a fault in the ignition coil primary and secondary circuits of the engine control unit (ECU). This means that the ignition coil is not working properly or there is an electrical problem with its circuits. The ignition coil is a vital component that ensures the ignition of fuel in each cylinder of the engine. The proper functioning of this coil is critical to the proper functioning of the engine.   Ignition coil primary 'B' = 2. Coil of the cylinder (A=1, C=3....L=12) Primary circuit:  It is the first circuit in the ignition coil, where electrical energy creates high-voltage signals. Secondary circuit:  This is the output side of the coil, and the high-voltage energy is transmitted through this circuit to the spark plug.   Symptoms   Symptoms of a P0352 fault code can be:   Engine Won't Start or Hard Start:  Your vehicle may have difficulty starting the engine properly or may not start at all. This may be due to a malfunction in the ignition system.   Jerking or Vibration of the Engine:  The vehicle's engine may shake or begin to vibrate due to a lack of proper ignition. This can be especially noticeable when the engine is running at high rpm.   Power Loss:  The vehicle may accelerate slowly or there may be a loss of power while driving. This can be caused by the ignition coil not working properly.   Poor Fuel Efficiency:  A problem with the ignition system can lead to fuel not being fully burned, which can negatively impact fuel efficiency.   Smoke from the Exhaust:  Black or white smoke may come out of the exhaust as the combustion process will not be smooth.   Engine Light On: The  P0352 code may cause the engine light to come on due to the engine control unit (ECU) detecting an error. This indicates a problem with the ignition coil or other components.   Difficult Idling:  The vehicle may run erratically during idling and the engine speed may fluctuate.   Causes   Causes of P0352 can include:   Ignition Coil Failure: A malfunction in the ignition coil is often the main cause of the P0352 code. The ignition coil manages the engine's ignition system, and when it is not working properly, the engine's ignition process is disrupted.   Ignition Coil Connection Problems: Loose connections, oxidized or corroded sockets in the electrical connections between the coil and the ECU can trigger this problem. Improper connections can lead to the ignition coils not working properly.   Poor Wiring or Short Circuit: If there is damage to the wiring supplying the ignition coil (e.g., short circuit, broken wire, or frayed insulation), it can lead to a P0352 error. Wiring errors prevent the coil from working properly.   Defective ECM (Engine Control Module): The ECM inspects the vehicle's ignition system and sends the correct signals to the ignition coil when there is an error. If the ECM is faulty, the correct signals cannot be sent, which can lead to the appearance of error code P0352.   Failure of the Ignition Module: In some vehicles, the ignition module works with the ignition coil, and if this module fails, error P0352 may occur.   Fuse Problems: If the fuse for the ignition system is faulty, the coils may not be powered. This leads to the ignition coils not working properly and the appearance of the error code P0352.   Overheating: Overheating of the ignition coils can cause damage to internal components. In the event of prolonged overheating, the coil may fail, and an error code may occur.   Defective Star Coil or Induction Module: Except for the ignition coil, some vehicles have a star coil or induction module. A problem with these components can also lead to the P0352 code.   Bad Control Signal or Signal Loss: When the signal powering the ignition coils does not come from the ECU properly, which can lead to the error code P0352. Signal loss can be caused by overvoltage or undervoltage.   Grounding Problems: When the ignition coil is not properly grounded, error code P0352 may occur due to the voltage in the electrical system not being balanced.   High Voltage or Low Voltage Problems: Ignition coils require a power supply of the correct voltage to function properly. Excessive rise or drop in voltage can cause the coil to not work properly and cause the error code to appear.   Apart from these, Vehicle Model Specific Problems: Each vehicle model may have different components in the ignition system, and different malfunctions in these components can also lead to the P0352 code. For example, in some vehicles, the ignition coil or module may have a more complex structure.   The causes of error code P0352 are usually due to a malfunction in the ignition coil, wiring, ECM, or ignition module. When this type of error is encountered, it is important to contact an automobile technician and have the fault detected correctly.   How to Fix   The steps that can be followed to resolve the error code P0352 are as follows:   Fault Code Verifying: First, the fault code must be verified with an OBD-II scanner. Since the P0352 code is registered, it is important to obtain more information through the browser. If there are other error codes other than P0352, the source of the problem can be determined more accurately by taking them into account.   Ignition Coil Check: Inspect the ignition coil. The coil may be damaged, cracked, or overheated. If there is visible physical damage, the coil may need to be replaced. Also, check the connections of the coil. Loose, oxidized, or corroded connections can cause the coil to not work properly. Make sure the connections are clean and tight.   Checking Wiring and Connections: Carefully check the wiring between the ignition coil and the engine control unit (ECU). Check the wiring for any short circuits, breaks, or abrasions. If there are any problems with the cables, the damaged wires will need to be replaced.   ECM (Engine Control Module) Control: Check the ECM. An electrical test can be performed to determine if the ECM is working properly. If the ECM is defective, then the ECM may need to be replaced. It can be difficult to determine if the ECM is faulty, so it may need to be inspected by a professional.   Checking the Ignition Module: If the ignition module (found in some vehicles) is corrupted, this can also cause error P0352. It should be tested whether the module is working correctly. If it is defective, it needs to be replaced.   Checking Fuses and Connections: Check the fuses of the ignition system. If the fuse is blown, no electricity goes towards the ignition coils. Check if the fuses are intact and replace them if necessary. Also, check the grounding connections associated with the ignition system. Ground faults can also lead to code P0352.   Voltage Control: The ignition coil needs a power source of the correct voltage to function properly. Test the voltage and check if it is at normal levels. If there is any imbalance in the voltage, the electrical system may need to be examined.   Ignition Coil Replacement: If the ignition coil is defective and the above steps did not resolve the issue, replace the ignition coil. You can eliminate the malfunction by installing a new coil. You should replace the coil with a spare part suitable for the make and model of the vehicle.   Test Drive: After making all the checks and necessary repairs, check if the vehicle is working properly by taking a test drive. If the engine light is still on or the vehicle is not working as expected, the fault should be checked again.   Seeking Professional Help: If the above steps do not resolve the issue, or if there is a lack of technical knowledge and equipment, it is recommended that you take your vehicle to a specialist auto repair service. The ignition system, engine control unit, and other components may need to be inspected and tested.   Long-Term Effects   Long-term effects of error code P0352:   Engine Inefficient Operation: Error P0352 is caused by a problem with the ignition system, leading to the engine not working properly. A glitch in the ignition of the engine leads to the fact that the fuel is not fully burned, which reduces the efficiency of the engine. Overall, the performance of the vehicle can be severely reduced. P0352 Increased Fuel Consumption:  Since there is no proper ignition, the fuel does not burn efficiently. This causes the vehicle to consume more fuel. If error P0352 is not resolved, fuel consumption may gradually increase, which leads to higher fuel costs overall.   Engine Damage: When the ignition system is not working properly, some components in the engine may overheat. Long-term damage can occur, especially to the ignition coil or fuel injection system. Failure to ignite properly can lead to wear out of the cylinders in the engine over time, damage to the pistons, or deterioration of the valves.   Increased Exhaust Emissions: If the combustion process does not occur properly, exhaust emissions may increase. Since the combustion efficiency will be reduced due to the P0352 fault code, there may be more harmful gases released from the exhaust. This can put a strain on your vehicle's exhaust emission system and cause it to fail to meet emission standards over time.   Engine Light Stays On: Fault code P0352 leads to the check engine light being on continuously. This informs the driver that there is a problem with the vehicle.   Poor Performance and Acceleration Issues: A malfunction in the ignition system can negatively affect the acceleration and overall performance of the vehicle. If the engine does not work properly due to the P0352 fault code, it can lead to a decrease in the vehicle's acceleration capacity and a loss of power. Overall, driving pleasure decreases and the vehicle accelerates more difficult.   Higher Repair Costs: If the P0352 error code is ignored for a long time, the malfunction can lead to bigger problems. For example, when the ignition coil or engine control unit (ECM) fails, these parts can become more costly to repair or replace. The longer the problem is not resolved, the higher the repair costs.   Damage to Defective Ignition Coil and Other Parts: The P0352 fault code indicates that due to the ignition coil not working properly, overheating or damage to the coil itself or other related parts (fuel injections, spark plug wires, etc.) may occur. This can shorten component life and lead to the replacement of the entire ignition system.   Vehicle Not Starting or Stalling: A long-term ignition problem can cause the engine to not start properly and ultimately cause the vehicle to stall.   Power Loss and Driving Safety: The ignition problem in the vehicle's engine causes the engine power to decrease. This, in turn, can lead to serious power losses in situations such as acceleration and hill climbing. Overall, this issue needs to be resolved so that your driving safety is not compromised.   The error code P0352 should be resolved as soon as possible. If you ignore this error, you may encounter bigger breakdowns and high repair costs in your vehicle.

What is Error Code P1120?   The error code P1120 usually indicates that there is a problem with the vehicle's Throttle Position Sensor (TPS). This error indicates that the voltage signal from the sensor is outside the expected range. TPS monitors the throttle clearance and sends this information to the engine control unit (ECU), regulating the engine's air-fuel mixture. Symptoms   Common symptoms of error code P1120:   1. Decline in Engine Performance Acceleration Problems: When the accelerator pedal is pressed, the vehicle does not accelerate properly or reacts with a delay. Acceleration Power Generation: The vehicle may show a sudden loss of power or an uneven acceleration during acceleration. Low Engine Power: Engine power may decrease when the throttle is not operating in the correct position. 2. Fuel Consumption Issues Increased Fuel Consumption: An incorrect reading of the throttle position can cause the engine to fail to adjust the fuel-air mixture correctly, leading to excessive fuel consumption. 3. Engine Fault Light (MIL) Check Engine Lamp: When the engine control unit detects a problem with the throttle position sensor, it turns on the engine fault light. 4. Irregular idling Idle Fluctuation: When the vehicle is idling, fluctuations in engine speed may occur. Idle Stop: When the sensor data is not accurate, the engine may suddenly stop (stall) at idle. 5. Problems with Accelerator Pedal Response Incorrect Throttle Response: When the accelerator pedal is pressed, the vehicle does not react properly, either sudden accelerations or insufficient reaction may occur. Throttle Can Feel "Clogged": While driving, it can be felt that the accelerator pedal is working as if it has "seized". 6. Exhaust Problems Black Smoke from the Exhaust: When the throttle position is detected incorrectly, the air-fuel mixture may deteriorate, and the unburned fuel may come out of the exhaust as black smoke. 7. Problems with Transmission Behavior Shifting Problems: Incorrect readings in the throttle position can disrupt the gearshift timing of the transmission. High RP VING: The engine may run at too high rpm because it does not correctly detect the throttle position. 8. The engine can go into safety mode Safety (Limp) Mode: If the ECU detects a serious fault in the sensor, it can put the vehicle into safety mode to protect the engine. In this case, the car runs at low power, and acceleration is limited. 9. Vibration and Vibration Engine Vibrations: Vibration may be felt in the vehicle while driving due to unstable operation of the engine. Uneven Driving: The vehicle may move forward in a jerky manner due to the incorrect opening-closing ratio of the throttle. 10. Exhaust Emission Issues High Emission Values: Incorrect air-fuel mixture can increase the emission values of the vehicle and cause problems in exhaust inspection.   Causes   Possible causes of error code P1120: 1. Throttle Position Sensor (TPS) Malfunctions Sensor Wear: TPS can wear down over time, sending false or erratic voltage signals. Improper Calibration: Disruption of the sensor's settings can cause the signal to fall outside the ECU's accepted ranges. Physical Damage: TPS may be physically damaged (e.g., exposure to hard impacts or extreme heat). 2. Electrical Problems Wire Harness Breakage or Damage:  The wire harnesses from the TPS to the ECU may be broken, short-circuited, or oxidized. Connector Problems: Loosening or rusting of the TPS's electrical ports can prevent the signal from being transmitted. Low or High Voltage: Low voltage (usually below 0.5V) or high voltage (above 4.5V) in the TPS circuit will prevent the sensor from working correctly. 3. Throttle Mechanical Problems Throttle Blockage: Carbon deposits or dirt can jam the throttle valve, causing the sensor to detect incorrect position. Mechanical Wear: Wear of the fittings of the throttle valve can prevent the sensor from working correctly. Jamming or Uneven Movement: If the throttle does not open and close properly, the TPS may send false signals. 4. Engine Control Unit (ECU) Problems ECU Misreading the Sensor: The ECU may not be able to properly interpret the signal from the TPS. ECU Software Issues: Software errors can cause the sensor signal to be detected out of range. 5. Incorrect Sensor Mounting Improper Placement: If the TPS is not mounted in the correct position, the sensor may send the wrong signal. Incompatible Part: Installing an improper TPS in the vehicle may cause the voltage ranges to be mismatched. 6. Other Related Sensor or System Issues Accelerator Pedal Sensor (APP) Problems: The coordination between the throttle position sensor and the accelerator pedal position sensor may be impaired. Defective Transmission Control Module (TCM): The TCM may not be able to correctly detect the throttle position. Distorted Air Flow Sensor (MAF): Erroneous data from the MAF sensor can lead to incorrect detection of throttle position. 7. Operating and Operating Conditions of the Vehicle Extreme Temperature or Humidity: Excessive temperature can affect the internal components of the sensor, causing erroneous signals. Improper Maintenance: If the throttle system is not cleaned regularly, carbon deposits can affect sensor performance. It is recommended to contact a specialist mechanic or authorized service for diagnosis and solution of the error. P1120 How to Fix   You can follow the steps below to fix the error code P1120:   1. Verifying the Error Code with the OBD-II Scan Device Verify error codes:  First, verify the error code P1120 and any other related error codes using an OBD-II scanner. In some cases, other sensors or systems may also be affected. 2. Checking the Throttle Position Sensor Visually Inspect the Sensor: Check if the TPS is physically damaged. Check for any loosening or breakage, especially in the wiring connections or at the mounting location of the sensor. Check the Contact Status:  Dirt or oxidation at the ports can cause the sensor to not work correctly. Clean the ports, if any. Check the Throttle Clamp and Valve: If the throttle is not moving properly or is dirty, the TPS sensor may send false signals. Clean the throttle valve and clamp. 3. Electrical Control of Throttle Position Sensor Voltage Control: Check the voltage of the TPS with a multimeter. Most sensors must operate within a certain voltage range (usually between 0.5V and 4.5V). If the voltage of the TPS is outside the specified range, the sensor may be faulty. Cable Connections: Check if the wires in the sensor's connections are broken, loose, or oxidized. If there is any damage to the cables, repair or replace them. 4. Replacing the Throttle Position Sensor Sensor Replacement: If you detect physical damage or wear on the throttle position sensor, it will be necessary to replace the sensor. The new sensor must be installed properly within the manufacturer's specified voltage range. 5. Check Transmission and Engine Control Module (ECU) ECU Software: Check if the ECU is working correctly. Sometimes software errors can misinterpret sensor data. If a software update is required, an update can be made at an authorized service. Transmission Control Module (TCM): If there are gear shifts or power transmission problems with the transmission, make sure that the transmission control module is working correctly. 6. Throttle Cleaning Clean the Throttle: If the throttle valve is dirty, this can lead to the sensor reading inaccurate data. By cleaning the throttle system, remove blockages and carbon deposits. 7. Transmission Fluid and Engine Status Check Transmission Fluid Level: A low transmission fluid level or dirty fluid can cause problems with gear changes. Check the level and quality of the liquid, replace if necessary. Review the Engine: Make sure the engine is working properly. If there is any imbalance in the engine operation, the data from the TPS sensor may not be interpreted correctly. 8. Resetting Electronic Systems Clear Error Code: After the repairs are made, clear the error code with the OBD-II device and restart the engine. Take a Test Drive: Once you have cleared the error code, take your vehicle for a test drive. If the car is running properly and the engine fault lamp is not on, then the problem is solved. By following the steps mentioned above, you can check the sensor, its connections, and the engine and transmission systems, as well as intervene in defective parts if necessary. If the problem persists, it would be best to seek help from a specialized technician, as there may be a more complex problem with the vehicle's electronic systems.   Long-Term Effects   Here are some key points that explain why error code P1120 is important:   1. Engine Performance and Acceleration Issues Acceleration Delay:  The throttle position sensor determines the engine's relationship with the accelerator pedal. When the TPS is faulty, it becomes difficult for the engine to get the right amount of fuel-air mixture. This can cause a delay in acceleration or an erratic response. Power Loss:  A faulty sensor prevents the engine from working as it should, and the vehicle does not move with the expected power, which can lead to problems while driving. 2. Fuel Efficiency High Fuel Consumption:  Erroneous data from the throttle position sensor causes the engine to fail to adjust the air-fuel mixture correctly. This, in turn, leads to excessive fuel consumption because the engine runs inefficiently. Emission Issues:  This type of breakdown can also negatively affect vehicle emissions. When the engine is not running efficiently, more dirty gases can come out of the exhaust, which negatively affects the environment. 3. Transmission and Gear Change Problems Irregular Gear Changes: TPS helps the transmission shift correctly with engine speed and throttle position. When this sensor is faulty, the transmission may not shift properly, which affects driving comfort and safety. Driving Safety:  Incorrect throttle data can disrupt the synchronization between the transmission and the engine, causing sudden acceleration and deceleration problems. This can be dangerous, especially when driving in traffic. 4. Engine Fault Lamp Lights Up Engine Warning Light:  The error code P1120 usually notifies the engine control unit (ECU) that there is a problem. When the ECU misinterprets the data provided by the throttle position sensor, it turns on the engine fault lamp. This light alerts the driver to be aware of the problem immediately and ensures early intervention. More Serious Problems: If the P1120 error code is ignored, a small problem can turn into a larger malfunction over time. This, in turn, can lead to costly repairs. 5. Driving Comfort and Risk of Failure Erratic Engine Operation:  Erroneous data from the throttle sensor can lead to the engine not working properly and fluctuations in idle. This causes the vehicle to run unsteadily while driving and reduces driving comfort. Vehicle Stalling:  This error can cause the vehicle to stop suddenly while idling. This creates a significant safety risk, especially in heavy traffic or at low speed. 6. Emission Control and Exhaust Issues Failure in Emission Tests:  A faulty TPS incorrectly regulates the air-fuel mixture, which can lead to vehicle failure in emissions tests. This, in turn, harms the environment and can prevent the vehicle from being legally on the road. High Smoke from the Exhaust:  An irregular air-fuel mixture can lead to black smoke coming out of the exhaust, which has negative effects on the environment and can negatively affect the vehicle's exhaust system. 7. Security Risks Torque and Power Issues: Failure of the throttle position sensor prevents the engine from properly controlling torque and power delivery. This can lead to loss of control of the vehicle, especially at high speed or during sudden maneuvers. Sudden Power Loss: This sensor failure can cause the motor to lose power in an instant. This can cause the driver to lose speed unexpectedly, causing traffic accidents.   The significance of the P1120 error code is that it can have serious effects on the vehicle's engine performance, fuel efficiency, emission levels, and safety. Malfunctions in the throttle position sensor can adversely affect not only the efficiency and driving comfort of the vehicle, but also its safety. Therefore, early detection and repair of this error code is beneficial for both the car owner and the environment in the long run.