Traction Control Active??
Thread Starter
Burning Brakes
Joined: Jun 2006
Posts: 794
Likes: 1
From: Groton Ct
Traction Control Active??
I already did a search and didnt really get any answers.
I just changed rims went to a 18 & 19 set up and running 275x30x18 & 315x25x19.
The minute i got in the highway and tried to accelerate the TC activated. From what i have read the new wheels shouldn't have effected anything? Any ideas what causing this? Or is it possible i brunt out (cough) another TC module?
I just changed rims went to a 18 & 19 set up and running 275x30x18 & 315x25x19.
The minute i got in the highway and tried to accelerate the TC activated. From what i have read the new wheels shouldn't have effected anything? Any ideas what causing this? Or is it possible i brunt out (cough) another TC module?
Melting Slicks
Joined: Nov 2003
Posts: 2,887
Likes: 2
From: Macomb MI
St. Jude Contributor
Did you ever think that with the new tires (probably a bit slipper) you really are spinning the tires. I do it all the time from 60 mph granted I've got a supercharger, but you've got some mods yourself I see.
Team Owner
Joined: May 2006
Posts: 21,473
Likes: 356
From: Palmdale, Ca----- 2009 Cyber Gray 4LT A6 F55 452 RWHP 422 RWTQ- RIP 1998 C5 734 RWHP & 585 RWTQ-----
It is possible that the heigth of the tire is off too much!
Have you measured the heigth - If I remember right there can not be a difference over a 1/2" or the PCM will do what you are experiencing
If it is a huge difference then all that will be needed is for you tuner to recalibrate the tire size in the PCM
Thanks,Matt
Have you measured the heigth - If I remember right there can not be a difference over a 1/2" or the PCM will do what you are experiencing
If it is a huge difference then all that will be needed is for you tuner to recalibrate the tire size in the PCM
Thanks,Matt
Thread Starter
Burning Brakes
Joined: Jun 2006
Posts: 794
Likes: 1
From: Groton Ct
no i dont think slipping is the issue. I have the Falken 452's they stick great. i spun more with my 295s on the back, with the 315 i have noticeably more traction.
And it is activating under normal driving conditions not just when i beat on it.
And it is activating under normal driving conditions not just when i beat on it.
Tech Contributor
Joined: Oct 1999
Posts: 41,013
Likes: 9,775
From: Charlotte, NC (formerly Endicott, NY)
A number of people are making this mistake lately and there have been plenty of postings about it. This must be the third one I have seen in the last couple of weeks.
As I posted in those threads this is not something a tuner can help you with since tuners can only work with the PCM while the Traction Control function is provided by the EBCM which they can't modify.
Bill
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Cruising
Joined: Jun 2008
Posts: 11
Likes: 0
Yeah I had this same problem with my 350Z... basically you just need to have your front tires shorter in diameter by at least about an inch. If your rears are the same diameter as the fronts or shorter, then the rears are making more revolutions than the fronts and the computer thinks the rears are spinning and thus the TCS tries to prevent that.
Someone should really write a small article on this and make it a sticky because this becomes ever more important for those who go to aftermarket wheels and a lot of people don't realize the staggered fitment requirements.
Someone should really write a small article on this and make it a sticky because this becomes ever more important for those who go to aftermarket wheels and a lot of people don't realize the staggered fitment requirements.
Advanced
Joined: Apr 2005
Posts: 99
Likes: 1
From: Iowa
I bought my vette like that. When shopping for tires I suggest everyone use a tire size calculator to get proper diamater measurements. Tires are not cheap to buy.
http://www.corvetteactioncenter.com/.../tirecalc.html
http://www.corvetteactioncenter.com/.../tirecalc.html
Last edited by Johnc6; Jul 8, 2008 at 10:28 PM.
Le Mans Master
Joined: Aug 2002
Posts: 8,222
Likes: 0
From: Norfolk VA
Yeah I had this same problem with my 350Z... basically you just need to have your front tires shorter in diameter by at least about an inch. If your rears are the same diameter as the fronts or shorter, then the rears are making more revolutions than the fronts and the computer thinks the rears are spinning and thus the TCS tries to prevent that.
Someone should really write a small article on this and make it a sticky because this becomes ever more important for those who go to aftermarket wheels and a lot of people don't realize the staggered fitment requirements.
Someone should really write a small article on this and make it a sticky because this becomes ever more important for those who go to aftermarket wheels and a lot of people don't realize the staggered fitment requirements.
Pro
Joined: Jun 2008
Posts: 583
Likes: 0
From: Philly region SCCA
