P0508
Idle Air Control System Circuit Low
Generic code
Vehicle Speed and Idle Control System
High severity
Moderate repair
Free on OBD DashX
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What P0508 means
- The fault code P0508 indicates that there is a low circuit voltage in the Idle Air Control system. This may lead to poor engine performance or stalling.
Possible symptoms
- Poor engine performance or stalling
- Illuminated check engine light
- Rough idle or stalling
- Reduced engine power or acceleration
Possible causes
- Malfunctioning Idle Air Control (IAC) valve
- Damaged or faulty wiring in the IAC circuit
- Loose or corroded electrical connections in the IAC circuit
- Failed Engine Control Module (ECM)
Related parts
- Idle Air Control System: IAC (Idle Air Control) System controls the speed of the engine when it is idling. This car's engine may keep stalling due to problems with the IAC
Possible solutions
- Replace the Idle Air Control (IAC) valve
- Check and repair any damaged wiring or connections in the circuit
- Tighten or clean any loose or corroded electrical connections in the circuit
- Replace the Engine Control Module (ECM) if necessary
Free on OBD DashX
P0508 on OBD DashX
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