Trj

This weekend at VIR I threw my right front speed sensor light twice. That also triggered ABS/PSM signals on my dash computer. Im guessing that my right front wheel is lifting on high speed turns and then hitting when it makes contact again causing a discrepancy that the cars computer thinks is a problem or malfunction... Each time we hooked the diagnostic computer up to the car, read the codes and then everything was alright.

Has anyone had any issues like this in the past. My car is a 2003 996, not a gt3 or cup. Thanks T.Roy

redridge

wow... thats the 1st for me.... do you have PSM off?

Trj

Yes, I cant stand running with the PSM on!

redridge

what size tires are you running f/r?

Ahmet

I'm guessing you mean the ABS light comes on, and a scan tells you that the speed reading was implausible? If that is the case, you likely have a sensor that's starting to fail internally. Lifting a wheel will not throw a code or trigger the light. I lift the inside front wheel at VIR on occasion also, no issues.

Trj

I am running Dunlop 250/640/18, 285/650/18.

I think it is the speed sensor that needs to be replaced. I will give it a try....

Ahmet

Let us know how it turns out.

CWay27

Coming out of some driveways, one of my front wheel lifts and when it does, the christmas tree lights up on my dash (PSM and ABS). I turn the car off for a couple of seconds and it's fine.

Trj

I did not try that. Does yours say drive to shop?

99firehawk

will only say take to workshop if its 03+

CWay27

Nope. Last time the display said that was when I had busted cats.