Traction control kicks in with right turns - LotusTalk

JonL · 09-25-2009, 10:18 PM

Tried a search but couldn't find the answer.

Is there a TSB or something about this? TC kicks in with right turns only. More with slow turns like turning right from a stop sign. Problem goes away when TC is turned off or the wheel is straightened.

Jon

Seb · 09-25-2009, 11:14 PM

Do you have LSD?

JonL · 09-25-2009, 11:35 PM

Seb · 09-25-2009, 11:59 PM

Hmmm, that's interesting.

RichardNHCooper · 09-26-2009, 05:28 AM

Yes been there done that. Annoying isn't it. The good news is that it is easy to fix. I just did an ECU reset. I did not have an OBD tester at the time so I did what Charlie suggested.
Run the motor, switch off then disconnect the battery after three seconds.I did this three times to be sure and it has been perfect since (June) This does not effect any reflash on the ECU so it is safe. Please post how it goes as it took me weeks to figure it out !!

Quote:

Originally Posted by JonL

Tried a search but couldn't find the answer.

Is there a TSB or something about this? TC kicks in with right turns only. More with slow turns like turning right from a stop sign. Problem goes away when TC is turned off or the wheel is straightened.

Jon

JonL · 09-26-2009, 08:26 AM

Sweet. That was the answer I was looking for! I saw a couple of posts where people mentioned CharlieX's "fix" but could never find what that actually was.

I'm out of town right now but will try it in a couple days when I get back home and let you know how it goes.

Thanks, Richard!

charliex · 09-26-2009, 08:31 AM

Thats covering up the fault, which is why i usually have people talk to me instead of posting that procedure.

Either one of the sensors on the ABS is failing, the wire might be being pulled when you turn the wheel (this is typically the problem) which causes the TC to think the wheel is slipping, so it adjusts accordingly by altering speed via TC.

Or you have different sized front and rear wheels from factory spec, and turning it makes it go over the allowed 3% or so difference.

JonL · 09-26-2009, 02:14 PM

Thanks CharlieX! Covering up another fault may have actually caused the problem. In dealing with the famed "ice mode" problem, I unplugged one of the ABS sensors for my last track day and haven't plugged it back in yet. I guess I should have figured that the car would use the ABS sensors to detect wheelspin for the TC. Wonder why it doesn't do it turning left?

Jon

Simba · 09-26-2009, 02:31 PM

Quote:

Originally Posted by JonL

I unplugged one of the ABS sensors for my last track day and haven't plugged it back in yet.

Why would you unplug a sensor? If you want to disable ABS at the track, just pull the fuse for it. It's #12 in the front box.

charliex · 09-26-2009, 04:10 PM

Yeah what simba said.

So yeah anyone who reads this thread, don't do do the ecu reset procedure, you're more than welcome to call me and i'll help you figure out the real issue.

Normally the ABS disables itself after a short while if it doesn't see both front wheels moving, i've never tried it with just one.

RichardNHCooper · 09-26-2009, 04:15 PM

Hi Charlie
My car has been running well since my problem in June. ABS seems to be functioning fine, do you think I have a problem. I now have an OBD scanner and it shows no fault codes.
Thanks
Richard
PS I love the VF stage 1. And I am going off to help fit your Gotham 265 tune to Paul G's Exige S this morning.

Quote:

Originally Posted by charliex

Thats covering up the fault, which is why i usually have people talk to me instead of posting that procedure.

Either one of the sensors on the ABS is failing, the wire might be being pulled when you turn the wheel (this is typically the problem) which causes the TC to think the wheel is slipping, so it adjusts accordingly by altering speed via TC.

Or you have different sized front and rear wheels from factory spec, and turning it makes it go over the allowed 3% or so difference.

charliex · 09-26-2009, 04:20 PM

No its just a car by car thing, that reset procedure does other things too, so i just want to make sure people just don't do it willy-nilly

JonL · 09-26-2009, 09:53 PM

Quote:

Originally Posted by Simba

Why would you unplug a sensor? If you want to disable ABS at the track, just pull the fuse for it. It's #12 in the front box.

I was under the impression that if you pull the ABS fuse, you lose the speedo. Unplugging the sensor is just as easy since I'm changing wheels/tires for the track anyway.

Remembering to plug the sensor back in is seemingly the hard part. . .

09-25-2009, 10:18 PM	#1 (permalink)
JonL Registered User Join Date: Dec 2006 Location: Spokane, WA Posts: 43	Traction control kicks in with right turns Tried a search but couldn't find the answer. Is there a TSB or something about this? TC kicks in with right turns only. More with slow turns like turning right from a stop sign. Problem goes away when TC is turned off or the wheel is straightened. Jon __________________ '06 Exige SY, LSD, Track Pack, 2bular 7" w/ panel kit, Volk CE-28N, Nitron Sport PRO, SS brake lines

09-25-2009, 11:35 PM	#3 (permalink)
JonL Registered User Join Date: Dec 2006 Location: Spokane, WA Posts: 43	Yup. __________________ '06 Exige SY, LSD, Track Pack, 2bular 7" w/ panel kit, Volk CE-28N, Nitron Sport PRO, SS brake lines

09-26-2009, 08:26 AM	#6 (permalink)
JonL Registered User Join Date: Dec 2006 Location: Spokane, WA Posts: 43	Sweet. That was the answer I was looking for! I saw a couple of posts where people mentioned CharlieX's "fix" but could never find what that actually was. I'm out of town right now but will try it in a couple days when I get back home and let you know how it goes. Thanks, Richard! __________________ '06 Exige SY, LSD, Track Pack, 2bular 7" w/ panel kit, Volk CE-28N, Nitron Sport PRO, SS brake lines

09-26-2009, 08:31 AM	#7 (permalink)
charliex OSX Black hat Join Date: Feb 2005 Location: Las Vegas , NV Posts: 9,935	Thats covering up the fault, which is why i usually have people talk to me instead of posting that procedure. Either one of the sensors on the ABS is failing, the wire might be being pulled when you turn the wheel (this is typically the problem) which causes the TC to think the wheel is slipping, so it adjusts accordingly by altering speed via TC. Or you have different sized front and rear wheels from factory spec, and turning it makes it go over the allowed 3% or so difference. __________________ Black Exige S - http://goth.am 265 Mule / Elan M100.ECU Tuning, http://www.elisetalk.com/forums/showthread.php?t=39660 West Coast Lotus Meet - Las Vegas - November 6-9 2009 http://www.westcoastlotus.com/

09-26-2009, 02:14 PM	#8 (permalink)
JonL Registered User Join Date: Dec 2006 Location: Spokane, WA Posts: 43	AH HA! Thanks CharlieX! Covering up another fault may have actually caused the problem. In dealing with the famed "ice mode" problem, I unplugged one of the ABS sensors for my last track day and haven't plugged it back in yet. I guess I should have figured that the car would use the ABS sensors to detect wheelspin for the TC. Wonder why it doesn't do it turning left? Jon __________________ '06 Exige SY, LSD, Track Pack, 2bular 7" w/ panel kit, Volk CE-28N, Nitron Sport PRO, SS brake lines

09-25-2009, 11:14 PM	#2 (permalink)
Seb <3 QR25DE Join Date: Mar 2007 Location: Austin, TX Posts: 754	Do you have LSD?

09-25-2009, 11:59 PM	#4 (permalink)
Seb <3 QR25DE Join Date: Mar 2007 Location: Austin, TX Posts: 754	Hmmm, that's interesting.

09-26-2009, 04:10 PM	#10 (permalink)
charliex OSX Black hat Join Date: Feb 2005 Location: Las Vegas , NV Posts: 9,935	Yeah what simba said. So yeah anyone who reads this thread, don't do do the ecu reset procedure, you're more than welcome to call me and i'll help you figure out the real issue. Normally the ABS disables itself after a short while if it doesn't see both front wheels moving, i've never tried it with just one. __________________ Black Exige S - http://goth.am 265 Mule / Elan M100.ECU Tuning, http://www.elisetalk.com/forums/showthread.php?t=39660 West Coast Lotus Meet - Las Vegas - November 6-9 2009 http://www.westcoastlotus.com/

09-26-2009, 04:20 PM	#12 (permalink)
charliex OSX Black hat Join Date: Feb 2005 Location: Las Vegas , NV Posts: 9,935	No its just a car by car thing, that reset procedure does other things too, so i just want to make sure people just don't do it willy-nilly __________________ Black Exige S - http://goth.am 265 Mule / Elan M100.ECU Tuning, http://www.elisetalk.com/forums/showthread.php?t=39660 West Coast Lotus Meet - Las Vegas - November 6-9 2009 http://www.westcoastlotus.com/

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