What alternate TPS units fit our throttle bodies?
#16
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.
#17
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?
http://www.ebay.ca/itm/BOSCH-0280120...3D282107345656
Has anyone looked into these before?
#18
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...
#19
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.
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.
#23
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
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
#24
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:
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:
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