Transmission shifting early still
06-10-2008, 10:04 AM
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Transmission shifting early still Well my transmission is still shifting early off the line. I tried a number of things. I tried messing with the TPS percentage as recommended. I lowered the MPH so it would shift off the RPM shift point set. It is still shifting from 1st to 2nd too early or to 3rd too early and boggs the motor out. I have been shifting it manually at the track and it runs great. I would like to get it to work in D and let it do the shifting to be more consistant and have less to worry about off the line.
06-10-2008, 03:06 PM
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black00ssFL
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Just an update for anyone searching and having the same problem. Ended up being a TPS tuning problem. The KPA at idle was well over the 60 needed to trip the code for a tps error because of running the MS4 cam. Changed the Error to 70 and has been running great since! Thanks for all the help! I think i know who I'll be going to when the stock tranny goes!
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2000 Camaro SS A4
http://www.fquick.com/BlackSSFL
Tuned by EFI Alchemy
(This is what you said you have allready done. but its all I can find also i read somewhere about MAF setting causing similar issues after a cam head swap )
12 Second Club
Trader Rating: 3
Join Date: Oct 2006
Location: Ocala, FL
Posts: 220
Just an update for anyone searching and having the same problem. Ended up being a TPS tuning problem. The KPA at idle was well over the 60 needed to trip the code for a tps error because of running the MS4 cam. Changed the Error to 70 and has been running great since! Thanks for all the help! I think i know who I'll be going to when the stock tranny goes!
__________________
2000 Camaro SS A4
http://www.fquick.com/BlackSSFL
Tuned by EFI Alchemy
(This is what you said you have allready done. but its all I can find also i read somewhere about MAF setting causing similar issues after a cam head swap )
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06-11-2008, 08:59 AM
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Just a thought. I had a similar problem to this and it almost drove me nuts. My Dad was looking one day and wanted me to press the gas from inside the car. Come to find out, my throttle cable adjustment had slipped and to the floor inside the car wasn't opening all the way at the throttle body. Adjusted the cables and my shifting was spot on. Good luck and hope this helps!
06-11-2008, 09:54 AM
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Thanks for the reply, i should have stated that i also went thru the cable issue also. I replaced the cable going to the TC/cruise box with a straight non-TC cable. I have an aeroforce guage that reads throttle position and it goes to 100 percent now. I also thought this was my problem initially.
