Going nuts, p0315 and no Bpp change in PCM with pedal movement
06-20-2014, 08:42 PM
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Going nuts, p0315 and no Bpp change in PCM with pedal movement Man I hate for something like this to be one of my first posts. I swapped a 2007 Gen IV 5.3 into my 94 Chevy truck. I had the harness and PCM work done by a guy that has done a couple of harnesses for me in the past.
Here's my issue. The first PCM gave me a fault at #2 injector. Pin out tests showed defective PCM. I changed it and the all was well with the injector. I did get the P0315 for crankshaft variance not learned. I tried to perform the procedure but it would tell me the parameters were not met. After some checking I see in the PCM it does not ever see the brake applied. The TCM sees the change but not the PCM. I checked at the PCM and the signal is reaching the PCM connector. I changed back to the first ECM and it does not see the brake applied either.
Can this be something done in the programing? I'm out of ideas.
Here's my issue. The first PCM gave me a fault at #2 injector. Pin out tests showed defective PCM. I changed it and the all was well with the injector. I did get the P0315 for crankshaft variance not learned. I tried to perform the procedure but it would tell me the parameters were not met. After some checking I see in the PCM it does not ever see the brake applied. The TCM sees the change but not the PCM. I checked at the PCM and the signal is reaching the PCM connector. I changed back to the first ECM and it does not see the brake applied either.
Can this be something done in the programing? I'm out of ideas.
Last edited by Qpeg; 06-20-2014 at 11:28 PM.
