I have had a PSM/ABS light come on with the higher boost levels and power after programming. The dealers (2) are coming up with a MAF failure. They have replaced it three times and the problem comes back under hard acceleration (track and highway) the car runs better then perfect after the upsolute programming was done, but the dealers are suspicious of having had the car "chipped". Anyone else having this problem post-Upsolute?
ABS/PSM Lights on Porsche 996TT
- Ersteller des Themas 996Turbo
- Erstellungsdatum
Just to clarify, Cobra is seeing a CEL when under hard boost, it appears to be a MAF overlimit exceeded. When he shuts the car down and drives normally it clears the light, so tha MAF is not failing. We want to find out if any other Porsche 996 are seeing this, if so we will look into seeing if it's possible to extend the limit on airflow reported, or decrease the signal from the MAF, the actual code number would help immensly.
Konrad Alvarino
Member
Valois,
For what it's worth, a similar thing with the ABS/PSM light happened to me (6 speed 996tt) and my friend (tip 996tt) both upsoluted the same day. The car is otherwise bone stock (no air filter, DVs or exhaust done...yet) I hope these are enough people having the same issues to prompt quick attention from your engineering dept.
For what it's worth, a similar thing with the ABS/PSM light happened to me (6 speed 996tt) and my friend (tip 996tt) both upsoluted the same day. The car is otherwise bone stock (no air filter, DVs or exhaust done...yet) I hope these are enough people having the same issues to prompt quick attention from your engineering dept.
y2khardtop
New Member
Mine is doing it as well. 2002 6-speed. Dealer says the check engine light came on as a MAF code during a mis-shift, which is possible. However, it came on about 6 or 7 times, and I never miss more than 1 shift per weekend (learning the limits, don't you know).
Anyway, the stability control AND ABS shut down, in the rain on stock tires, and in the dry on Dunlop slicks. I never had any of these problems prior to Upsolute.
However, I am VERY happy with the performance, but would like to get these issues worked through.
David Farmer
Anyway, the stability control AND ABS shut down, in the rain on stock tires, and in the dry on Dunlop slicks. I never had any of these problems prior to Upsolute.
However, I am VERY happy with the performance, but would like to get these issues worked through.
David Farmer
Konrad Alvarino
Member
Any updates guys???? 
Konrad Alvarino
Member
Happy Holidays!
Can we get an answer for Xmas?
Konrad
Can we get an answer for Xmas?
Konrad
Hey Cobra,
Unfortunately I didn't do a before... as for the after there was some mix up at the place and so it's going to happen on saturday instead. I agree with the variables etc.. If only I didn't have to use an AWD dyno
There are only two in california...PS Thinking of an exhaust (sigh it's such a hard decision) and maybe headers next, does anything need to be changed with the DME?
Sharkey
Take a look at the new G-tech.
Its a nice unit, I just got one, but haven't had a chance to use it. Allows you to road dyno, and download to your computer for analysis. Has shift lights, cornering limit lights, HO & TQ.
I have done an exhaust, GT2 intercoolers, K24 hybrid turbos, Still runs great, but I think it has more potential. I sent Upsolute ,the best info I could get on my current A/F to update my programming for the current mods. Waiting to hear back.
G-Tech
Take a look at the new G-tech.
Its a nice unit, I just got one, but haven't had a chance to use it. Allows you to road dyno, and download to your computer for analysis. Has shift lights, cornering limit lights, HO & TQ.
I have done an exhaust, GT2 intercoolers, K24 hybrid turbos, Still runs great, but I think it has more potential. I sent Upsolute ,the best info I could get on my current A/F to update my programming for the current mods. Waiting to hear back.
G-Tech
Sounds like you went to town pretty good there on the mods
Which exhaust did you go with?I liked the old G-Tech, although it gave out some crazy numbers on the Turbo one night. 3.11 0-60 and 11.3 1/4mile. It was cold that night but the next day I ran 11.8 @120 at the drag stip. I'll probably give the new one a try, it seems to have many more features. Either way this saturday I'm going to do the dyno and hopefully then I can have upsolute do a custom tune job. Are you getting it done for 91, 93? It would be great to have a 100 race program but only it/when a switchable version arrives
Seems like there is some bad and good press on this issue on Rennlist:
http://forums.rennlist.com/cgi-bin/rennforums/ultimatebb.cgi?ubb=get_topic;f=6;t=001173
http://forums.rennlist.com/cgi-bin/rennforums/ultimatebb.cgi?ubb=get_topic;f=6;t=001173