P1508 Renault Idle Control System Circuit Open
Possible causes
– Idle Air Control Valve harness is open or shorted
– Idle Air Control Valve circuit poor electrical connection
– Faulty Idle Air Control Valve
– Idle Air Control Valve circuit poor electrical connection
– Faulty Idle Air Control Valve
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
– Engine rough idle
– Engine rough idle
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