Thread: Tuners
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Old 12-07-2010, 09:27 AM
MADDOG MADDOG is offline
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It's always a safe bet to download your stock tune back to the vehicle before having service performed. I agree with Dan, they'd have to be looking or have a reason to query the PCM to find the tuner.

Problem is, if they scan the PCM you may end up with a fault (conflict between scan tool and current program) which scrambles your PCM, renders it useless and you may not be able to reload your stock program. Not a good thing to have happen.

Regarding the warranty issue, it's not cut and dried. If you experience a component failure, and it can be directly attributed to your modification (say having installed a tuner), they are not obligated to warrant the failed item. However, they cannot blanket void your whole warranty just because you have modified the vehicle.
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