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Old 07-08-2012, 05:55 AM
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need opinions

Normally I don't post because I can usually find the answers I need by reading what others have done. But this time I want to be sure before I order a part. Ok, my problem is the other day my truck started losing power and throwing a CEL. I hooked up my AE, pulled the codes, p1211 stood out, and started monitoring the icp pressure and duty cycle. The duty cycle was between 70%-98% and the pressure was no more than 700. Fast forward to today, my truck will not start. Took the same readings, while cranking 65% duty cycle and 125 psi. Am I correct in thinking the pump is shot. On a side note my oil was changed 800 miles ago with schaeffers 9000.
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Old 07-08-2012, 10:33 AM
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I've come to the conclusion that the ipr might be the culprit. Gonna pick one up tomorrow and try it.
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