Generic
Type:
    Powertrain - Fuel and Air Metering - ISO/SAE Controlled
Description:
    Cylinder 4 Contribution/Balance

GM
Type:
    Powertrain - Fuel and Air Metering - ISO/SAE Controlled
Description:
    Cylinder 4 Balance System Conditions
Cause:
    Engine runtime over 90 seconds at idle speed, engine coolant at normal temperature, constant fault in CYL 4 and the PCM detected the fuel reduction for CYL 4 exceeded the limit for 2 seconds