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icp problems need advise

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Old Feb 8, 2011 | 07:52 PM
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icp problems need advise

i thought i had a fuel problem turns out to be its a icp problem.the problem im having is driving on the road and when i slow down the truck starts to run like crap rpms up and down and some times stalls.i have a scan gauge and have it and set up to read icp my readings are 580 and gos as high as 900 psi way to high for idle this is a eratic problem comes ang gos. i was wondering if this could be a soft ware problem
 
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Old Feb 8, 2011 | 08:37 PM
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Consistent w/ either a bad ICP or a bad IPR. What code(s) are you getting? What year model truck?
 
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Old Feb 10, 2011 | 07:19 PM
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its a 04 no codes
 
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Old Feb 10, 2011 | 07:56 PM
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Early or late 04 (after 9/29/03 production is a late 04)?

If early 04, take a good look at the ICP and see if it is leaking oil. If so, replace it and the connector.
 
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