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NEEDED!!! Late model 2008 AC Delco pcm tune

This is a discussion on NEEDED!!! Late model 2008 AC Delco pcm tune within the PCM Tuning forums, part of the W Body Tech category; Hey GPers, I have a late model 2008 Gp SE. I want to build the hell out of this car ...

  1. #1
    SE Level Member zenman400's Avatar
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    Default NEEDED!!! Late model 2008 AC Delco pcm tune

    Hey GPers, I have a late model 2008 Gp SE. I want to build the hell out of this car but at the moment i am held up by the lack of a tune. Now, I have been all over this site and two others including GPONA with all the same results, such a people telling me about getting a new pcm with a tune that wont communicate with the late model cam buss. Ive tried will overkill and to the point of even in a full conversation with will about this but no such luck. Does anyone have any ideas how to tune the late model 2008 Ac delco pcm's?

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    GTX Level Member FriboRage's Avatar
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    Default Re: NEEDED!!! Late model 2008 AC Delco pcm tune

    It wont happen, Im sorry to tell you that it's just not do-able at this point in time. I was in your exact shoes, and I dealt with Will on it, he sent me a pcm that was Delphi and the car wouldnt even start, just cranking and cranking. He reverse tested it by putting an AC delco pcm in his 2004 with a Delphi stock, and again the car wouldnt start.

    I even contacted a few GM resources and searched all over, it's just something that cant be done right now.

    I traded mine for an 04 comp G, lol... that's the only real way to do it. Will suggested to me that maybe if you switched out all of the other computer modules with a Delphi one, that could help in theory.
    2008 Grand Prix: Done: Intake, plog, zzp 2.5" catted dp, hv3 (SOLD)
    2004 Grand Prix GTP Comp G: Intake, headers, Overkill. Sport Edition Kv5 18x8 Soon to come Inferno Hood, SE Air Dam!

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    I want a Volvo. Fivefingerdeathpunch's Avatar
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    Default Re: NEEDED!!! Late model 2008 AC Delco pcm tune

    08's seem to be un-tuneable because of the new can bus system.

    SMGPFC Member #1

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    GTP Level Member darkhorizon's Avatar
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    Default Re: NEEDED!!! Late model 2008 AC Delco pcm tune

    What do you need tuned? Most of the crap that is done can be done mechanically elsewhere, and a check engine light doesnt really bother me most of the time.
    I DO NOT know what I'm talking about so I DO NOT POST. No advice is better than bad advice!

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    Pretty colours matt5112's Avatar
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    Default Re: NEEDED!!! Late model 2008 AC Delco pcm tune

    They're "un-tuneable" because neither HPT nor EFI live would make any return on the investment.

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    SE Level Member zenman400's Avatar
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    Default Re: NEEDED!!! Late model 2008 AC Delco pcm tune

    screw it ill just get a mustang...lol...

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    Pretty colours matt5112's Avatar
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    Default Re: NEEDED!!! Late model 2008 AC Delco pcm tune

    Please do.

    You'll find you'll have much more aftermarket and it'll be easier to get better 60's.

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    SE Level Member zenman400's Avatar
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    Default Re: NEEDED!!! Late model 2008 AC Delco pcm tune

    defiantly in know now about the 4.6 than the 3800 anyway

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