It was IGN 1 relay ground!!! I ran a temporary ground and I got the 12 volts when cranking!!!! Started it up and it's running great! Thank you so much. I'm so dang excited
Ok I pulled the relay, IGN 1 I'm measuring voltage at the sockets like you said but I'll give you the pin numbers of the relay. This is in run position. Pin 30 reads 11.5v pin 86 also has a reading of 11.5v. I'm not sure if this matters at all but I figured I'd let you know just to be sure. I...
PCM B Fuse is hot. PCM 1 fuse gets 1.1v when cranking until the IGN 1 relay begins clicking. It'll then go back and forth between 1.1v and 0. When the key is in position two I have a reading of 8mv. With the key removed I get a reading of 2mv.
This is a breath of fresh air to read. I was worried I wasn't going to hear from anyone about this matter. I've got an slt 4wd, fuses are pcm 1 & etc/ecm. Both 15a fuses under the " PARK LP " relay
Hello everyone, I'm new here. I've got an interesting issue here. I got ahold of an 04 gmc yukon that had been sitting for four years with no engine in it. I got an engine went through it and got it ready to go. I threw it in but all it does is crank no start. Fuel pump primes, I have rail...
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