LT1-LT4 Modifications 1993-97 Gen II Small Block V8

PCM question

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Old Nov 25, 2006 | 08:45 PM
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Ryan34's Avatar
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Well i installed some foglights on my car about 2 weeks ago. I disconected the battery(for safety). Well ever since then, my car seems to be shifting softer then it did, and just tonight i noticed that my car is shifting at 5800 rpm instead of 6000 rpm. Is it possible that i reset my madz28 tune back to stock? If so, is there a way that i can get it back?

P.S. power loss is hard to tell as i just installed a cutout aswell.
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Old Nov 25, 2006 | 08:54 PM
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Can't lose the tune. There's nothing that's overlapping info, it completely replaced info. On older computer controlled cars, if you unplug the battery it kind had to re-learn driving conditions. That usually only takes 10-30mins of driving, not 2 weeks heh.
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Old Nov 25, 2006 | 09:15 PM
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Originally Posted by Formula350
Can't lose the tune. There's nothing that's overlapping info, it completely replaced info. On older computer controlled cars, if you unplug the battery it kind had to re-learn driving conditions. That usually only takes 10-30mins of driving, not 2 weeks heh.
Thats what i thought, but its weird that my car shifts lower now, and the shift firmness could be in my head....and i know for a fact that it shifted at 6000 rpm before. And now that i think about it, my fan kick on temps are still set to the madz28 tuen...i'm just so confused right now
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