Fault Code P0511
Code meaning, symptoms, possible causes, part number, and estimated cost.
P0511
Idle Air Control Circuit Malfunction
Code P0511 indicates a malfunction in the Idle Air Control (IAC) circuit. This circuit is responsible for regulating the amount of air entering the engine at idle.
Part Details
Part Name
Idle Air Control (IAC) Valve
Reference P/N (OEM)
N/A
General part number for this fault code — not necessarily for your specific vehicle
Estimated Cost
₪400 - ₪1200
Engine Location
Throttle body
Symptoms
- Unstable or fluctuating idle RPM
- Engine stalling at stops
- Hard starting
- Check Engine light on
Possible Causes
- 1Faulty or clogged IAC valve
- 2Damaged wiring or connectors in IAC circuit
- 3Vacuum leak
- 4Defective Engine Control Module (ECM) (rare)
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