Reflashing the PCM, How does that work?
06-20-2005, 11:18 AM
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Reflashing the PCM, How does that work? To make a long story short, Chevy dealer did a LS6 conversion on my 04 GTO. Part of this was sub-contracting to Ed Wright for a mail order tune. I have decided to get a dyno tune to replace the mail order tune for various reasons. The new tuner has requested that I have the dealer reflash the PCM back to stock before I go there. How does the dealer do this? Can any dealer do it or does it have to be a Pontiac dealer? The Chevy dealer offered to do it but I want to make sure they have the right tune.
Also, any worries about driving the car with the LS6 heads and cam and a stock tune? The tuner is about 2.5 to 3 hrs from where I am so I'd have to drive a good distance with the stock tune back in. I appreciate any thoughts, comments, etc...
Also, any worries about driving the car with the LS6 heads and cam and a stock tune? The tuner is about 2.5 to 3 hrs from where I am so I'd have to drive a good distance with the stock tune back in. I appreciate any thoughts, comments, etc...
06-20-2005, 05:39 PM
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Originally Posted by Art_Vandelay
To make a long story short, Chevy dealer did a LS6 conversion on my 04 GTO. Part of this was sub-contracting to Ed Wright for a mail order tune. I have decided to get a dyno tune to replace the mail order tune for various reasons. The new tuner has requested that I have the dealer reflash the PCM back to stock before I go there. How does the dealer do this? Can any dealer do it or does it have to be a Pontiac dealer? The Chevy dealer offered to do it but I want to make sure they have the right tune.
Also, any worries about driving the car with the LS6 heads and cam and a stock tune? The tuner is about 2.5 to 3 hrs from where I am so I'd have to drive a good distance with the stock tune back in. I appreciate any thoughts, comments, etc...
Also, any worries about driving the car with the LS6 heads and cam and a stock tune? The tuner is about 2.5 to 3 hrs from where I am so I'd have to drive a good distance with the stock tune back in. I appreciate any thoughts, comments, etc...
Any dealer with a tech2 should be able to put a stock tune back in. I would have thought the GTO would already have LS6 heads from the factory, anyway. I would think you could make it back on the 2-3 drive without to many issues, just don't get on it till its tuned.
Gary
06-20-2005, 06:04 PM
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Any GM dealer can reflash the PCM plus any "Auto Lab" type service center with SPS can reflash any stock tune. I have had my 01 truck reflashed with the 02 tune and have had the CASE LEARN (crankshaft repositioned) done at my local service center. A friend has access to a Tech2 and we checked the calibrations later and they were fine.
