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Q: Misfiring cylinder

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There is a misfire on cylinder two.

A: When the on-board diagnostic system picks o...

When the on-board diagnostic system picks out specific cylinders for misfires, the ignition and fuel delivery systems must be inspected. A misfire on a single cylinder may involve the spark plug or fuel injector related to that cylinder. In the case of spark plugs, the full set of plugs and ignition wires should be replaced at one time. In the case of the fuel injector, the rule is the same and all should be replaced. Have an experienced technician, such as one from YourMechanic, inspect the vehicle and track down the cause of the misfire.

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