P0121 OBD Trouble Code
1 result found
| Type | Powertrain - Fuel and Air Metering - ISO/SAE Controlled |
|---|---|
| Description | TP Sensor Does Not Agree With MAP Conditions |
| Cause | No PCM or TCM system codes set, then the PCM runs the two different MAP tests described next. High Input Test - Engine running, throttle plate closed and a high MAP input present, then the PCM detected the TP sensor input that was too high (it should be low) Low Input Test - Engine running, VSS input over 25 mph, throttle plate open and a low MAP input present, then the PCM detected a TP sensor input that was too low Either condition met for 4 continuous seconds |
Try also: https://www.obd-codes.com/p0121
