P0121 OBD Trouble Code

1 result found

P0121 - GM
Type Powertrain - Fuel and Air Metering - ISO/SAE Controlled
Description

TP Sensor Performance Conditions

Cause

No MAP or TP sensor codes set, engine running, ECT input over 158°F, MAP input under 50 kPa or over 70 kPa, MAP input steady, and PCM detected the Actual TP input was over the Calculated TP input with MAP input under 50 kPa, or was below the Calculated MAP input with the MAP input over 70 kPa for 10 seconds.

Try also: http://www.obd-codes.com/p0121