P1120 LINCOLN Possible Causes
- Faulty throttle position sensor
- Throttle position sensor harness is open or shorted
- Poor electrical connection in throttle position sensor circuit
- Improperly adjusted throttle position sensor
How to Fix P1120 LINCOLN Code?
Begin by checking the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.
When is the Code Detected?
A malfunction is detected when the sensor voltage sent to the Engine Control Module (ECM) is out of range.
Possible Symptoms
Engine light on (or service engine soon warning light)
No throttle response
P1120 LINCOLN Meaning
The Throttle Position Sensor (TPS) responds to throttle pedal movement. The TPS is a rotary potentiometer sensor that provides a signal to the Powertrain Control Module (PCM) that is linearly proportional to throttle plate/shaft position. As the TPS is rotated by the throttle shaft, the following operating conditions are determined by the PCM:
• Closed throttle (includes idle or deceleration)
• Part throttle (includes cruise or moderate acceleration)
• Wide open throttle (includes maximum acceleration or crank flare)
• Throttle angle rate