Ford DTC P1120 – Throttle Position Sensor out of range
DTC P1120 meaning on Ford
The DTC P1120 for Ford indicates that the Throttle Position Sensor (TPS) is out of range. The TPS is a sensor that monitors the position of the throttle valve and sends signals to the engine control module to adjust fuel delivery and ignition timing.
Ford DTC P1120 symptoms
1. Check Engine Light illuminated
2. Reduced engine power
3. Poor acceleration
4. Rough idling
5. Stalling
Ford DTC P1120 causes
1. Faulty Throttle Position Sensor
2. Wiring or connector issues in the TPS circuit
3. TPS calibration out of range
4. Electronic control module (ECM) malfunction
Ford DTC P1120 seriousness
The DTC P1120 should be addressed promptly as it can lead to drivability issues and potential safety concerns. Ignoring this code may result in poor engine performance and increased fuel consumption.
How to diagnose DTC P1120 on Ford
1. Use a diagnostic scanner to retrieve the trouble code
2. Inspect the TPS wiring and connectors for any damage or corrosion
3. Test the TPS using a multimeter to check for proper voltage readings
4. Check the TPS calibration using a scan tool
How to fix DTC P1120 on Ford
1. Replace the Throttle Position Sensor if faulty
2. Repair any damaged wiring or connectors in the TPS circuit
3. Calibrate the TPS according to manufacturer specifications
4. If necessary, replace the ECM if it is determined to be the cause
How to erase DTC P1120 on Ford
1. Use a diagnostic scanner to clear the trouble code from the ECM memory
2. After fixing the underlying issue, perform a test drive to ensure the code does not return
3. If the repair was successful, the DTC P1120 should no longer be present in the system