COP Code
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Joined: Jul 2008
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COP Code
This weekend I changed sparkplugs on my 99 F250 5.4L V8...hoping to cure it from misfiring.
I got them changed and it ran the same....if not a little worse.
This morning I had AZ hook it to a code reader and pulled up a bad COP on number 4.
I know that I moved the #4 COP to #1 plug this weekend, so my question is....is the bad COP #4 or is it #1 now???
I got them changed and it ran the same....if not a little worse.
This morning I had AZ hook it to a code reader and pulled up a bad COP on number 4.
I know that I moved the #4 COP to #1 plug this weekend, so my question is....is the bad COP #4 or is it #1 now???
Senior User
Joined: Oct 2006
Posts: 215
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From: Allegheny Mountains, VA
Move both COPs to another plug (put #1 on #2 and #4 on #5 for example), have the codes cleared, and see what pops up next.
But like BP said, it isn't impossible to get a bad plug.
Stone
But like BP said, it isn't impossible to get a bad plug.
Stone
Last edited by Stone Mathews; Sep 8, 2008 at 06:16 PM. Reason: spelling
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Morgan Hudgens
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