Question about 2002 Ford Ranger Regular Cab

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Ihave a code 306 i unplug the fuel injector and no change in the eng rpm keep missing do i have a bad injector

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You could, but I would also check, spark plug wire's and ignition coil pack, and if that checks good, do a cylinder compression test, if all good replace fuel injector then.

Posted on Sep 09, 2010

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