Generic
Type:
    Powertrain - Fuel and Air Metering - ISO/SAE Controlled
Description:
    Cylinder 1 Contribution/Balance

GM
Type:
    Powertrain - Fuel and Air Metering - ISO/SAE Controlled
Description:
    Cylinder 1 Balance System Conditions
Cause:
    Engine runtime over 90 seconds at idle speed, engine coolant at normal temperature, constant fault in CYL 1 and the PCM detected the fuel reduction for CYL 1 exceeded the limit for 2 seconds