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Power Strokes
7.3 Tech
PCM Flash
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[QUOTE="Dirtclod, post: 1432695, member: 20061"] I was jumping the relay out to crank it one morning and I accidentally hit that terminsl with 12v. I'm not really sure how the circuit goes but I'm assuming it goes from the switch to relay and across to the pcm and pcm reads bar pressure and eot and then sends to relay to close circuit for glo plug power. Or maybe when I've jumpered it out it may have sent voltage back thru blowing a diode in the pcm. I took the the cover off today and didn't see anything burned. But I suppose it could be weak. I'm not an electronics person but I'm ok on D.C. Circuitry. A lot more aggravating than a/c which is my profession. It's funny though how p1747 is connected to epc,glo glo plug relay and cruise. What's the similarity there? [/QUOTE]
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