Hey guys, I've been playing with this for the past few days without much success. I have an 0411 PCM with a 5.3L/4L80E swapped into a 68 C10, running a single bar SD OS. I had the truck up and running well but as soon as I went to do the trans segment swap I started having a no-start issue. After flashing the PCM and keying off/on, attempt to restart results in the truck firing and dieing immediately, wideband shows a faily rich mixture. If I put my foot into the gas just enough to crack the throttle blade it will fire and run decently but refuses to idle.
Before last night, I was able to flash the original PCM tune back in the truck and it would run and idle great, however, that doesn't seem to be the case now. This issue seems to be a constant problem now, even though the IAC and all the other mechanical components are all working fine.
I've tried the following:
-Segment swap directly from original PCM tune
-Segment swap from original tune, then re-segment swap all settings BUT trans settings
-Segment swap from SD single bar
If it will help, I can post the tune. Any suggestions would be greatly appreciated.
Thanks,
-Ryan