hitting rev limiter after tcu tune
#76
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2003 porsche 996 turbo
so even if the tcu is set at 6700 its limiting at 6400? and you are a braver man then me no way i run 13 afr and higher at anything other than idle!
#81
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To my understanding, The ECU is overriding the TCU settings even if the TCU is set to shift at higher RPMs 6800, 6900?
#82
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TCU controls shift points. ECU controls the rev limit. Hence if the rev limit is lower than the shift points you are going to have a bad time.
#83
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2002 C32 AMG
For the ones that have the tcu tune is your C-mode the old winter mode, which seems to be how mine is. I'm assuming its ok to leave it in this being comfort even though it always takes off in second gear, which does make for a smoother take for regular driving. Just wondering you'll had any thoughts on this.
#85
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2002 C32 AMG
Ok, it just seems to take off alot softer, and smoother in c-mode, and not shift as quickly through the gears when normaly driven. Maybe its all in the way the program is set up for c-mode.
#86
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Justsaymo01 - I use Comfort Mode 80% of the time and only move to Sport or Manual for spirited driving.
#87
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I'm 99.9% sure my car takes stays in second gear all the way to a complete stop in Comfort Mode even with the TCU tune. Try stopping in C and then moving to S or M and you should feel it shift to 1st.
Justsaymo01 - I use Comfort Mode 80% of the time and only move to Sport or Manual for spirited driving.
Justsaymo01 - I use Comfort Mode 80% of the time and only move to Sport or Manual for spirited driving.
#88
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Porsche 2004 911
Chris, it’s been about 6 weeks since I last asked you regarding the TCU tune cure for the tranny jerk.. Is it still smooth sailing? To hassle you further (instead of me emailing Jerry again) have you heard of any further developments regarding the remote compatibility for the TCU tune. Hoping EC will concentrate on that path once all bugs ironed out.
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#89
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Well I was at the shop today working on further development of the headers and we talked briefly about the TCU and ECU tunes. What I can tell you is there is no current option for remote TCU tuning but it's a top priority for the guys. We're also working on getting the shift points back to 6500 rpm without the AFR spike and brutal shift. As for the rough shift at low RPM's, it's still gone after full ECU adaptation and a couple thousand miles on the odometer.
#90
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2003 porsche 996 turbo
Well I was at the shop today working on further development of the headers and we talked briefly about the TCU and ECU tunes. What I can tell you is there is no current option for remote TCU tuning but it's a top priority for the guys. We're also working on getting the shift points back to 6500 rpm without the AFR spike and brutal shift. As for the rough shift at low RPM's, it's still gone after full ECU adaptation and a couple thousand miles on the odometer.
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Porsche 2004 911
Well I was at the shop today working on further development of the headers and we talked briefly about the TCU and ECU tunes. What I can tell you is there is no current option for remote TCU tuning but it's a top priority for the guys. We're also working on getting the shift points back to 6500 rpm without the AFR spike and brutal shift. As for the rough shift at low RPM's, it's still gone after full ECU adaptation and a couple thousand miles on the odometer.
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#96
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2008 A8L, 2002 996TT X50, 2009 X5
If it's gone and stays gone with the new programming, even 2-3 months from now, that'd be terrific news.
#98
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So at a minimum you should budget for a trip to a shop with the STAR machine if you are thinking of doing the TCU mod.
#99
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my TCU mod is fine (I think) I havent had the a/f ratio checked, and I had my shift points changed back to stock due to hitting the rev limiter....
Other than that, the M mode is nice and the shifts are faster.
Other than that, the M mode is nice and the shifts are faster.