Q: Engine light comes on and idles roughly.

asked by on January 13, 2016

The Engine light is on and the car idles roughly. It was diagnosed earlier as an engine misfire.

Single cylinder misfires are usually caused by ignition components which is where I would start with on this car. Verify the ignition cap and rotor are still in one piece and that the wires are not arcing losing spark. Have a mechanic scan for codes to find out which cylinder is misfiring (P0301 for cylinder 1, P0305 for cylinder 5, etc.).

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