HP tuner and Yank 3000 converter
10-22-2004, 10:31 PM
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HP tuner and Yank 3000 converter
Hi,
I had my car tuned with HP tuner and it runs like "butter" except when
I get on hard throttle and come to a stop, the remaning upshifts are hard, especially from 1-2 until I stop and turn off the car for a mintue or two. Upon restart, the car upshifts normally. I get the 0748 code.
I know the computer is sensing extra slippage with the Yank converter and maxing out the tranny line pressure to compensate. Hence the reason for hard shifts. However, this is quite annoying.
My question is what settings do I use in HP tuner to get rid of this converter slippage sensing issue and resulting hard upshifts?
I had my car tuned with HP tuner and it runs like "butter" except when
I get on hard throttle and come to a stop, the remaning upshifts are hard, especially from 1-2 until I stop and turn off the car for a mintue or two. Upon restart, the car upshifts normally. I get the 0748 code.
I know the computer is sensing extra slippage with the Yank converter and maxing out the tranny line pressure to compensate. Hence the reason for hard shifts. However, this is quite annoying.
My question is what settings do I use in HP tuner to get rid of this converter slippage sensing issue and resulting hard upshifts?
Last edited by davette; 10-22-2004 at 10:33 PM.
11-11-2004, 01:56 AM
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Anybody have an answer?
I think it might have to do with gear scaling....
Does somebody have a good gear scaling "hp tune" that will work with a 3.42 rear and a Yank 3000 TC (or similiar stall speed)? My tuner used HP tuners and I still have the issue mentioned above...
This whole slippage and resulting hard shift thing seems to be a C5 only bugaboo. The F body guys never have this issue with rear end/TC upgrades!
I think it might have to do with gear scaling....
Does somebody have a good gear scaling "hp tune" that will work with a 3.42 rear and a Yank 3000 TC (or similiar stall speed)? My tuner used HP tuners and I still have the issue mentioned above...
This whole slippage and resulting hard shift thing seems to be a C5 only bugaboo. The F body guys never have this issue with rear end/TC upgrades!
Last edited by davette; 11-11-2004 at 01:59 AM.
