P0300 OBD Trouble Code

1 result found

P0300 - GM
Type Powertrain - Ignition System or Misfire - ISO/SAE Controlled
Description

Engine Misfire Detected Conditions
Cause

Engine runtime over 90 seconds at idle speed, ECT sensor input more than 132°F, fuel adjustment more than a calibrated amount in the PCM, then the PCM detected multiple misfires had occurred

Try also: https://www.obd-codes.com/p0300