Notices
944 Turbo and Turbo-S Forum 1982-1991
Sponsored by:
Sponsored by: Clore Automotive

What alternate TPS units fit our throttle bodies?

Thread Tools
 
Search this Thread
 
Old 03-30-2017, 06:45 PM
  #16  
Voith
Addict
Rennlist Member
 
Voith's Avatar
 
Join Date: Aug 2007
Location: Slovenia
Posts: 8,385
Received 647 Likes on 409 Posts
Default

Originally Posted by Raceboy
You're sure this 3pin TPS is true variable resistance TPS and not just idle/WOT switch?

Also 951 uses 6pin TPS.
OP wants tps for standalone not stock 6 pin one.

I think it is, turning it feels like it's potentiometer.

For those looking for replacement on stock cars, audi's 2.7 turbo tps # 078 133 154 looks very similar to 951's.



Last edited by Voith; 03-30-2017 at 07:11 PM.
Old 03-30-2017, 08:49 PM
  #17  
Black51
Three Wheelin'
 
Black51's Avatar
 
Join Date: May 2010
Location: Edmonton, AB
Posts: 1,956
Likes: 0
Received 9 Likes on 8 Posts
Default

It seems the TPS I found are NLA as well. What about the 928 or 911 TPS's? http://www.ebay.ca/itm/OEM-BOSCH-TH3...3D282107345656

http://www.ebay.ca/itm/BOSCH-0280120...3D282107345656

Has anyone looked into these before?
Old 03-30-2017, 09:02 PM
  #18  
V2Rocket
Rainman
Rennlist Member
 
V2Rocket's Avatar
 
Join Date: Jan 2007
Location: Nashville, TN
Posts: 45,498
Received 633 Likes on 490 Posts
Default

If you can A) get the shaft to work and B) add an "adapter harness", there are a few Nissan TPS that have 2x 3-pin connectors - one is a idle/wot switch and the other is the variable-voltage pot for throttle position. Perhaps their output is about right...

Old 03-30-2017, 11:31 PM
  #19  
odonnell
Rennlist Member
Thread Starter
 
odonnell's Avatar
 
Join Date: Nov 2012
Location: Houston TX
Posts: 4,763
Received 63 Likes on 45 Posts
Default

I don't use the idle/WOT switches for standalones, the only actual input I use from the TPS is for enriching the mixture upon transience (you step on the gas quickly, the ECU adds more than usual fuel because of the quick change). I can pretty much calibrate any TPS as long as it bolts up somehow.

Right now, base case is to find a basic VAG TPS that doesn't require any real effort to adapt, only because I know it's out there.
Old 03-30-2017, 11:55 PM
  #20  
V2Rocket
Rainman
Rennlist Member
 
V2Rocket's Avatar
 
Join Date: Jan 2007
Location: Nashville, TN
Posts: 45,498
Received 633 Likes on 490 Posts
Default

Paging Peep...where'd you get the pot-type TPS for VEMS?
Old 03-31-2017, 02:50 AM
  #21  
ealoken
Three Wheelin'
 
ealoken's Avatar
 
Join Date: Aug 2016
Posts: 1,331
Received 114 Likes on 72 Posts
Default

Sorry for bad picture, but here is My BMW tps

Old 03-31-2017, 02:18 PM
  #22  
Raceboy
Three Wheelin'
 
Raceboy's Avatar
 
Join Date: Jul 2005
Location: Estonia
Posts: 1,631
Received 17 Likes on 15 Posts
Default

I used Audi 2.6, 2.8 (12v), 4.2 (ABZ, from A8, also 3.7) TPS.
Old 04-01-2017, 06:17 PM
  #23  
markl951
Rennlist Member
 
markl951's Avatar
 
Join Date: Dec 2006
Location: Seattle, WA
Posts: 188
Received 7 Likes on 7 Posts
Default

Here's what's inside a stock turbo TPS.

Potentiometer pins 1, 2, & 3 (wiper) go to the KLR. Idle switch pin 6 goes to the DME. Pin 4 is GND. Pin 5 is not used.

I this unit, the micro switch got stuck in the closed position so the DME thought I should be idling no matter what the potentiometer was telling the KLR.

I hung onto it knowing I can replace the switch and use it again if I have to.

Bruce's TPS test procedure is a good reference.
http://www.arnnworx.com/catalog/inde...id=2&chapter=2

Old 04-22-2018, 11:53 AM
  #24  
odonnell
Rennlist Member
Thread Starter
 
odonnell's Avatar
 
Join Date: Nov 2012
Location: Houston TX
Posts: 4,763
Received 63 Likes on 45 Posts
Default

Hi guys,

I found something that should be feasible.
I helped with getting Measquirt set up on my buddy's E30 and the TPS is basically the same the NA 944. I tested my 951 TPS on the E30 throttle body and it worked perfectly, calibration worked flawlessly. So I know that the M20 platform has the same fitment as the 944/951 (951 TPS bolts up to NA throttle body). Since there's a larger aftermarket for E30s, this adapter exists:

https://squaredmotorwerks.com/products/m50-tps-adapter

The adapter allows the use of a common E36 (M50) sensor. It's 3-pin and offers potentiometer functionality. Cheap, reliable, plentiful, fits the bill. Here is the data and the PN for the M50 TPS:

The following 3 users liked this post by odonnell:
Breakaway944 (03-24-2022), Velozipedia (08-06-2019), walfreyydo (02-06-2023)



Quick Reply: What alternate TPS units fit our throttle bodies?



All times are GMT -3. The time now is 01:00 PM.