DTC's all over the place!!
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From: Hollidaysburg, PA
DTC's all over the place!! ok. so i put the fuel pump in, and everything is goin fine, except for the SES light. i'm driving today, and the car shuts off on me again. i have attached all the codes that we read with my buddy's tuner. i was wondering if anyone out there can decipher this crap and tell me what the best course of action would be to fix it.
thanks,
bill
thanks,
bill
I would begin by checking all the fuel pump wires/grounds/fuses as the problem most likely lies in there due to the fact that both 1635 and 1639 codes were set. The voltage is not correct for the fuel pump because it's shorting out somewhere.
Some how or another the PCM got toasted. From looking at the codes and what you were doing to the car I would bet that somehow 12v got applied to the fuel tank pressure sensor 5v referance curcuit and fried the curcuit in the PCM.
how about try looking at your factory wiring harness at the back of the car behind the drivers side wheel.
pull it out and look at the GREY wire, which is the positive for the fuel pump. check to make sure that it is getting good contact.
i installed my racetronix PnP and didn't install there wiring harness and ended up the contacts were touching enough on that grey wire and ended up causing my fuel pump to be cutting off permanently for 20min or so after i cut the car off (it wouldn;t start). so then i installed racetronix's wiring harness with fuse and put the alternator positive cable to the AUX battery post. never looked back
pull it out and look at the GREY wire, which is the positive for the fuel pump. check to make sure that it is getting good contact.
i installed my racetronix PnP and didn't install there wiring harness and ended up the contacts were touching enough on that grey wire and ended up causing my fuel pump to be cutting off permanently for 20min or so after i cut the car off (it wouldn;t start). so then i installed racetronix's wiring harness with fuse and put the alternator positive cable to the AUX battery post. never looked back
why in the hell would you buy a new pcm after installing a fuel pump and then getting trouble codes? if you short circuited something; you would have more than 1 problem...
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TECH Apprentice
iTrader: (3)
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From: Hollidaysburg, PA
Originally Posted by ZL1Killa
why in the hell would you buy a new pcm after installing a fuel pump and then getting trouble codes? if you short circuited something; you would have more than 1 problem...
speedy...no, 602 is not set. i just cleared the dtc's and rescanned, and 1683 is the only one there after driving it for 2 days. so i'm pretty sure the computer let go.
Last edited by squall01; Sep 8, 2006 at 01:23 PM.
