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Power Strokes
7.3 Aftermarket
PCM swap and I am still stumped Grrr!!
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[QUOTE="TARM, post: 1014078, member: 578"] OK finally finally something in my life that is wrong just this one time ends up being the simplest thing. It was the chip. I pulled the battery grounds to clear the PCM just in case. Cut the duct tape and pulled the chip. Hooked the Battery back up and it fired right up. Now here is something I think shows are good these 7.3s are or at least the condition of mine. It has not been started since 5/08/2013. Confirmed this by the linked thread when it went dead. It fired up after maybe the 3rd the engine turned over. Like 1.5-2 seconds of cranking time. This is with a very tired slow geared original starter. I would have thought for sure it would have taken a few tires of cranking after all that time. Now as the fuel pumps were fine the first key cycle and not the second before I got too happy I keyed it on again and the pumps kicked on. I always choose to do the least amount of cleaning on the contacts. Most of the time I ensure I am not in a rush and I gentle remove only the silicon with nothing more than my finger nail and rubbing with the pad of my finger. I do this as I prefer to have the tightest fit between the chip clip and board contacts. Matts right hand man Larz (sp?) gave me a call. He saw I was having trouble keeping my head above water and figured he would throw me a life preserver LOL I think he actually has already posted before I finish this. But he confirmed my issue. What we came up with was it could be the contacts needed a bit more cleaning or I could have had the duct tape on to tight that put a bit of lateral load on the chip and tq it enough to have bad contact between the chip and board. In my defense the reason I did not even consider the chip at first was because the pump did cycle on the first time and then cut out. If it had not come on from the beginning I MIGHT have thought first to check the chip contact. Both Matt and Larz confirmed I will need my tunes to be updated before the glow plug will operate correctly again as mu current tunes are for the GPCM not the GPR. Even with the swapped out the SD top engine harness and GPR swapped in. But hell it started. You guys with your PATS still plugged in you can unplug it completely and it will do away with the whole security light etc.... for good. (without unplugging the console bulb LOL Joe which is likley what I would have done if I was not told about the plug by Dave, Matt, Larz) I assume this also kills the need for key sync etc... None of that stuff. If it even works at all with the non PATS PCM. But I get no security light at all now for sure. I am working on the PCM contacts and will get it all back together and hopefully all will be GTG. Again thanks to all you guys for taking the time to help me figure this out. My blood pressure is starting to slowly return to normal and my kids are starting to come out of hiding LOL [/QUOTE]
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PCM swap and I am still stumped Grrr!!
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