#3 miss fire - Ford Powerstroke Diesel Forum
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post #1 of 3 Old 02-19-2014, 12:31 PM Thread Starter
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#3 miss fire

I've got an '01 450 the codes say #3 miss fire. I put a new injector, and a new wiring harness in it., new fuel pump. Runs better but still missing. Did pop test on it the #3 sounds week compaired to the rest of the other injectors. Could this be the IDM going bad? Any help would be great. Thanks.
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post #2 of 3 Old 02-19-2014, 10:52 PM
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if you do a cct test #3 and #8 almost always fail due to the recall cam sensor.
what brand uvch did you go with? dorman is junk. motorcraft/international are the ones to get.

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post #3 of 3 Old 02-22-2014, 08:59 AM Thread Starter
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Changed the cam sensor no change. still miss firing. It is a Dorman uvch.
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