what can i change to lessen the hard 1-2 shift on this transmission. this is the only issue i have with transmission. i just got mpvi3 yesterday so this is all new to me. thanks for any info. attached is the current tune, i believe stock
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what can i change to lessen the hard 1-2 shift on this transmission. this is the only issue i have with transmission. i just got mpvi3 yesterday so this is all new to me. thanks for any info. attached is the current tune, i believe stock
First things first. Before you go messing with a stock tune, does it have a transmission, TAC, or any other codes in the PCM? If so diag those first before messing with the tune. Those do not typically have a harsh shift when everything is bone stock.
0 codes and i forgot to mention po said they put in a corvette servo.
That servo will firm up the shifts.
Shifts are pretty subjective. Do you have a stock vehicle to compare to? You could soften it up with some adjustments.
I don't like to undo shift firmness from shift kit type parts like that.
I'd go back to the OEM servo to get the shift you want.
Totally agree. I tell customers no problem on aftermarket clutches, zip kits, etc etc but no mechanical shift kits given the ability to put the shift kit in electronically in a far safer better manner.Quote:
Originally Posted by Alvin
Thank you. I’ll try this weekend
The 70E servo might be a better choice. (combined with adding some TM at the 1-2)
https://www.sonnax.com/tech_resource...for-the-4l60-e