sdtheclub Posted December 22, 2007 Share Posted December 22, 2007 Had P0102 and P0104 hard fault and MAF pid was very erratic with koeo. Ended up being the H.P fuel pump causing concern. Hotline couldn't believe it. So if you get one with map sensor codes unplug the h.p pump and retest. If map codes go away then you need a pump or harness. Quote Link to comment Share on other sites More sharing options...
Tony302600 Posted December 22, 2007 Share Posted December 22, 2007 Now thats crazy....How did you figure that out? Does the pinpoint test tell you to unplug it? Quote Link to comment Share on other sites More sharing options...
sdtheclub Posted December 23, 2007 Author Share Posted December 23, 2007 No the pinpoint tests said it needed a MAF sensor. I ended up looking in the EVTM and started disconnecting everything thing that had to do with the MAF sensor and thats after I had overlayed the wiring to the MAF sensor. The guy at Hotline said he was impressed that I found the problem. Can't wait to get screwed for the three hours it took for me to figure it out. Our warranty clerk sucks!!!!!!!!! Quote Link to comment Share on other sites More sharing options...
Keith Browning Posted December 23, 2007 Share Posted December 23, 2007 This is a great post because it shows us that the PCED pinpoint tests can be convoluted. Sometimes we need to think outside of the box as Jim likes to advise us to do. It also shows that the Gents at the HotLine are also stuck with the same learning curve as we are. Recall my post on the HPFP and the processor... I diagnose electrical problems by looking at the schematic to see everything that is related to the system/circuit/component. Why shouldn't we do the same with driveability? Nice job! /forums/images/%%GRAEMLIN_URL%%/thumbup.gif Quote Link to comment Share on other sites More sharing options...
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