Quote:
Originally Posted by andrewb70
I only know Holley EFI...I believe John Parsons has dealt with the GMPP ECUs and PWM output.
Andrew
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Andrew, I think you and I experimented with this years ago & I thought mine was working (still not finished), but I think it was just coming on at a slow speed), I have purchased a production ECM flashed with the CTS-V OS, and when I get front cover back on I'll know for sure if it works. (Timing chain was off a couple teeth).