Quote:
Originally Posted by ls1nova71
LS engines run on a 4cyl signal so you need to change the tach resolution, that was probably done on your last PCM. But if you have a programmable tach you can just set it to 4cyl and it should be fine.
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Yeah, I had it on 4 cylinder and it was reading 2x on this new tune. Switched it back to 8 cylinder and it reads correctly now according to my Fusion app. The tuner must have changed the signal.
All issues now resolved less e-fans. I will probably just get an external controller for this as I am 0 for 2 on tunes getting these to work correctly and I don't want to pay for a real (in person) tune just for e-fans. Thanks for all the guidance and I really came out ahead on cost by just getting another ecu and ebay tune.