2003 6.0L Injector Harness - Ford Powerstroke Diesel Forum
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Old 11-07-2012, 06:14 AM
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Question 2003 6.0L Injector Harness

Can I replace the 2003 injector harness (3C3Z 9D93 AA / 1843796C92) with the 2005-2007 harness (5C3Z-9D930-AA / 1870390C91). It seems to me that they should have the same pinouts. The newer harness is about 1/2 the price.

Thanks,
Jay
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Old 11-07-2012, 04:54 PM
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The ICP sensor wire is going to be in the wrong spot. The routing is way different around the filter housings but that should be self explanitory. you may have a couple conflicting intake manifold studs in the wrong spots also
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Old 11-08-2012, 11:45 AM
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Looking at the wiring diagram, it doesn't look like the ICP sensor wiring is part of the injector harness. I could be wrong, but it looks like the injector harness just runs between the injectors and connectors X1 and X2 on the FICM.
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Old 11-08-2012, 05:12 PM
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sorry I missed the injector harness part
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Old 11-08-2012, 05:56 PM
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Quote:
Originally Posted by 428F250 View Post
Can I replace the 2003 injector harness (3C3Z 9D93 AA / 1843796C92) with the 2005-2007 harness (5C3Z-9D930-AA / 1870390C91). It seems to me that they should have the same pinouts. The newer harness is about 1/2 the price.

Thanks,
Jay
call any ford dealer they will tell you what the harness superseeds too free of charge!!
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Old 11-10-2012, 05:54 AM
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hi 428F250 why are you replacing your injector harness? im just wonderin cause im havin injector 6 and 8 miss fire at idle but not at full thottle.
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