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Old 05-06-2010, 05:41 PM
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Still Not Starting. I'm lost.

My truck (2003 6.0) had rough idle and intermediate powerloss for about 6 months. Then it stopped running after throwing these codes.
P0336 - CKP crank position sensor A circuit/range performance
P0278 - Injector 6 low contribution/balance
P0341 - CMP cam position sensor circuit performance
P1378 - FICM voltage low
P2290 - ICP too low
U0105 - Lost communication with FICM
P006a - MAF code
It started out with p1378 wich is low voltage ficm and then within a couple days all the above. It cranks just fine but doesn't start now. I replaced the cps sensor,ficm and both wiring harnesses that connect to the ficm. Still no start. And it doesn't register any codes. I would start checking fuel pressure except it showed the ficm codes. Any help would be much appreciated. Thanks. It does have edge with platinum on it but I run it on mileage almost all the time. Please help.
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Old 05-06-2010, 08:33 PM
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when you put the new ficm in did you get it flashed to your pcm
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Old 05-06-2010, 08:55 PM
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Did you buy the FICM used off of a running truck or brand new? If it's new and you havn't had it programmed, it's blank.
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Old 05-07-2010, 04:50 AM
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Ficm

It came off a low mileage 2003 6.0. Therefore it didn't neednto be flashed.
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Old 05-07-2010, 04:58 AM
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Sounds like a sync problem between the PCM and FICM.
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