Tps

[TRAKCAR]

Could be an interesting topic;
I am researching:

- before going to Barber last weekend my right rear TPS did not wrok, even driving on the street with my track wheels.
- Replaced right rear wheel, looked at TPS, was identical, same part number.
-It did not solve anything. The right rear would work only for a couple of laps, then every time it would give me a flat tire warning and it would stop working and display – instead of PSI’s.

All other 3 sensors worked every time, all of the time!
This leads me to believe that the TPS can be made to work.
The last time we replaced the sensor on the car (Left rear) and it made no difference.
<O:p</O:p<O:pIwill try:
Replace the right rear sensor and I go to VIR with the same wheels on the same corners.
Swap wheels around just to see what the TPS will do?
Etc. Etc. There is something funny going on with TPS, but amazingly enough the other 3 worked all the time!

[FTS]

I think swaping wheels around to test would be a good step. I should be getting my track wheels this weekend and I am going to switch to them just to drive around the street for couple of days before VIR and see what happens, I'll keep you posted.

I am only guessing that you might have an issue with your TPS. May be Trackrat can look up for info in PIWIS to see if there is any info on it.

[landjet]

I saw a show on TV that said every time a sensor's position is changed it has to be recalibrated for that position. Don't know why but that is what was said.

[TRAKCAR]

I've just today figured out the part#'s in my track wheels was different then OEM. Seems parts have been updated from year ago in MKII.

Will try to post part# asap.
The oem work great also on track! Accurate too.

[FTS]

Hmmm, if they are accurate, they may be worth it. I don't have the TPS sensors in the track wheels, they haven't caused me any issue beyond the annoying dash lights.

[TRAKCAR]

Seems they work OK:
Orbit wrote:Working on TPMS now. The front that was not working did not have a sensor in it. The two that were working activated in .3 miles .We will install the new sensors in the other two rims and test.The part number TPM I am installing is 958 361 660 00 . ( 2010 spec )Part number TPM coming out is 997 606 021 20. ( Seems to be -08 spec )Both operate at 433 Mhz but there must be a difference if they changed the part number."

I originally got them in March '10. Wheels have been to a few places exchanging tires near tracks. I hope that with all the right part numbers it will work.

Putting sensors in all wheels will help too ;-)

[OnPole]

The Tire Rack has the correct TPMS.

[FTS]

OnPole, welcome to the Register and thanks for posting the info. Do you know how much that kit is?

[OnPole]

Thanks! They are around $100 each. Wholesale is $78.

[ToddB]

I picked up sensors for my track wheels. The part number is 958.361.661.00. The part is labeled with a VW/Audi part of 7P0.907.275. It's supplied by Beru. I haven't installed them yet, just finally received my new wheels.

[mdrums]

Trakcar, do you find that TPMS work on the track to keep an eye on pressures? I was thinking of putting TPMS in my CCW wheels. Even though the ( ! ) light would be on the pressure readings would still work.

[Trackrat]

Late to the party, sorry :(

I buy my sensors from Tirerack, good prices and OE stuff. Be sure to buy the sensor and the "install kit". Damon Witters (O: 888 428 8355 (tel:888%20428%208355) ext. 643) over there knows our cars and is a good guy.

I always use my TPMS dash display on track for awareness of how much pressures are going up during a session. I see 34+ psi and know I may as well come in and bleed air. While folks will say TPMS is useless for track I would take the other side and say I find it invaluable. For me it always works perfectly.

Obviously you want to double check and start your day with a gauge, preferably graduated on .1 (tenths) of a PSI increments but the TPMS is perfect for all but racer$.

[TRAKCAR]

Yes, you do get flat tire warnings, but I think it can be fixed with PIWIS. I only get it on the rear tires! And yes you do always see the PSI's. Accurate to within one PSI. I have been braking the TPS. I wonder if the new part number will hold up better.

[PJS]

I don't use them at the track but I am checking pressures after each session... hmmm maybe I should give them a shot at track. I have always felt that since checking so frequently that it was added cost and potential added complication

[TRAKCAR]

I like to see the pressures come up and had 2 real flat tires on my car. I like to know..

[stujelly]

Anyone have the TPMS come apart in the wheel.

I just was checking my car out after the California festival of speed and I heard a grinding noise in the left rear wheel. I have read several threads that could be indicative of a loose wheel and potential damage. I checked the CL torque and it was accurate. So I pulled wheel and rolled it. The TPMS was loose in wheel. I am taking to tire store tomorrow for a look. I will post pics if anyone is interested.

Thanks

[FTS]

I've heard that one or two times before, infrequent occurance I think, but apparently possible. I assume these are the stock units. I'd love to see some pics, may be we can tell how the heck it happens.

Thanks,

[TRAKCAR]

I've broken 3 or 4 so far but they all just went dead but attached or were broken when mounting/dismounting track tires.

[jurnes]

Anyone have the TPMS come apart in the wheel.

I just was checking my car out after the California festival of speed and I heard a grinding noise in the left rear wheel. I have read several threads that could be indicative of a loose wheel and potential damage. I checked the CL torque and it was accurate. So I pulled wheel and rolled it. The TPMS was loose in wheel. I am taking to tire store tomorrow for a look. I will post pics if anyone is interested.

Thanks

I had a leak at the TPMS stem (997**** TPMS). Found that all four were not a snug as they should be. I give them a check while performing wheel torque check w/ a 11mm wrench before my first track session of the day.

No definitive torque due to the O ring setup. Over tightening could destroy the O ring seal!

[Trackrat]

I had a leak at the TPMS stem (997**** TPMS). Found that all four were not a snug as they should be. I give them a check while performing wheel torque check w/ a 11mm wrench before my first track session of the day.

No definitive torque due to the O ring setup. Over tightening could destroy the O ring seal!

Jeff- great running with you at TH this weekend, your car is looking great!- Pop over to the pics/video thread and say hi :-8 and post pics if 'ya got 'em!