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Old 01-05-2011
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I am: ryan Davis
Join Date: Jan 2011
Location: athens, ga
Vehicle: 2002 Ranger
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Bad PCM???

Has anyone every experienced a single cylinder misfire caused by a bad pcm? I have a misfire on cylinder one and have replaced plugs, wires, and the coil. I've swapped injectors to see if the misfire would move. I've done a compression test that came up normal. I am running out of ideas on what else could be causing a constant cylinder 1 misfire.
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Old 01-05-2011
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I am: Ray C
Join Date: Jun 2010
Location: Los Angeles
Vehicle: 1995 Ranger
Posts: 173
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Could the wiring to the injector.... Check with a noid light to see if it's firing.
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Old 01-05-2011
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I am: John Hudson
Join Date: May 2007
Location: New Cumberland
Vehicle: 1994 Ranger ext cab 4x4
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I have had bad coils do that, never a pcm...
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