P042F
Exhaust Gas Recirculation A Control Stuck Closed
Generic code
Auxiliary Emissions Control
Medium severity
Moderate repair
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What P042F means
- Exhaust Gas valve is stuck at closed position
Possible symptoms
- In some cases, there may be performance problems, such as pinging on acceleration, when the engine is under load or when driving the vehicle at higher speeds
Possible causes
- Restriction in the Exhaust Gas Recirculation (EGR) passages, usually caused by carbon buildup
- The EGR Valve is defective
- Lack of proper vacuum or electrical signal to the EGR valve
- Malfunctioning EGR Vacuum supply solenoid
- Lack of proper EGR system feedback to the computer
Related parts
- Exhaust Gas Recirculation (EGR): Exhaust gas recirculation (EGR) is an emissions reduction technique used in petrol and diesel engines. Problems lead to harmful emissions out of limit
Possible solutions
- Before replacing any parts try cleaning the EGR valve, tube and passages.
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