Re: What are codes 12 & 16??(lost my manual)
12 (r): PCM could not increase idle speed above normal idle during KOER high RPM idle check. Suspect throttle body coking.
Its suggests your throttle body is blocked / restricted by coking or buildup
16 (r): ISC can't keep engine from stalling. Check for short to ground in ISC circuit.
sorry I put 13 up instead of 16
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