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Hello, i was wondering if the tool in question would reset a stage 1 tuned car?
 

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It should be able to clear most codes if that's what you mean,
but it won't re-set the map to standard if that's what you're after doing
 

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If GM GlobalTIS is used to do a Software Update, then yes. The ECU would be over-written with genuine GM software/firmware.

But if just reading codes, then no.
 
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