Powertrain
generic / SAE
P054E
Idle Control System Fuel Quantity Lower Than Expected
At idle the ECU expects a calibrated fuel quantity to maintain set-speed. The actual quantity is significantly less than modelled - typical for a tight engine, very low friction, dragging accessory load missing, or implausible idle airflow.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number5 / 4E
Possible causes
- Expected accessory load missing high
- Idle airflow offset medium
Inspection / repair
- Difficulty: medium
- DIY: shop recommended
- Estimated cost: 150–700 €
- Estimated time: 1–3 h
- Component: idle control strategy
- Component: fuel metering
- MIL / check engine light
Sources
References
sae:J2012