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Tuner in Training
VCM enhancments settings
I'm working on a 2002 GMC k2500HD 8.1L we installed an STS turbo kit on it a few years ago but now he is taking the kit off to put on a newer truck. I'm trying to put the tune back to stock and don't have the "stock" tune saved anywhere not expecting I'd ever have to do this. So a few questions.
I had tuned this truck by converting the VCM Enhancements to 2bar speed density. Do I have to use credits to convert back to the 1bar MAP-speed density Enhanced?
Or a better question might be..... can I just hook up my Pass through stock style programmer up and reflash the PCM with the latest and greatest 8.1L GM stock software and call it good? Or will I need to "un-do" all the HpTuners programming on the VCM editor first? Or what would you guys suggest to make this as simple as possible?
Thanks
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Tuner
Just have the latest GM published cal by VIN put into it.
Save the cal that came out before you over write it. Just in case.