Thatdavidkid Posted May 31, 2014 Report Share Posted May 31, 2014 Hi, I searched and found nothing at all, if I'm just a bad searcher, I apologize. I'm having PCM issues and have found a replacement but it is from a lq9/4l80 drivetrain. I have a lm7/4l60. I know an lq9/4l65 PCM would work and I'd just reflashed with hptuners, but I'm told since the lq4 PCM is set up for 4l80 I can't use it. Is this correct? Hoping an experienced tuner chimes in on this. Thanks. Quote Link to comment Share on other sites More sharing options...
chpspecial Posted June 1, 2014 Report Share Posted June 1, 2014 It can be used, but your stock tune needs to be "written entire" onto the new pcm. Sent from my HTC6500LVW using Tapatalk Quote Link to comment Share on other sites More sharing options...
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