Just installed a SACER tps. Need help

Post by **precopster** » 15 Oct 2018, 01:50

Voltage is ONLY present between Pins 1 & 5 within 8 secs of turning on ignition to Pos II on a functional throttle.

It's safe to say that if you hear the throttle operating, the voltage to the flap is there.

The other circuit (between pins 2 & 4) requires power for the potentiometer. As I mentioned voltage across 2 & 4 can be compromised by a broken or corroded film. The best method is to ground the black lead of your meter and look for voltage at Pin 2 OR 4. This voltage stays on as long as key is in Pos II

Golf2 · Post by **Golf2** » 15 Oct 2018, 10:49

Thanks so much for sharing your knowledge on this, you've really helped a lot.

I've just done a quick test before it started pouring down. I put the black lead to chassis ground and the red lead on pin 1 and saw 6v. I then put the red lead on pin 2, 3 and 4 and saw 0v on all of them. I then decided to disconnect the TPS from pin 2 and recheck it. With the TPS disconnected, I could see 7v on pin 2 (ETM side). Hopefully this proves what you were saying about a broken or corroded film on the potentiometer.

That's as far as I got as it poured with rain and unfortunately I don't have a garage.

Thanks once again for all your help.

Tom

Post by **precopster** » 15 Oct 2018, 14:41

Golf2 "With the TPS disconnected, I could see 7v on pin 2 (ETM side)"

Which is the ETM side for you? The 5 pin side or the 3 pin side?

Golf2 · Post by **Golf2** » 15 Oct 2018, 14:45

Sorry I meant on the 5 pin side. I disconnected the TPS from pin 2, like you do when installing a Sacer TPS wire. Once disconnected, I could see voltage on pin 2. When I connect the TPS back to pin 2, the voltage goes back to 0v.

Hope that makes sense.

Thanks.

Post by **precopster** » 15 Oct 2018, 15:01

You should be fine to go ahead and install the Sacer TPS.

Output leads for throttle angle to the connector are yellow/green and red/blue. Once the Sacer is fitted power it up and measure the voltages at those leads. If you rotate the flap by hand they should vary.

Golf2 · Post by **Golf2** » 15 Oct 2018, 15:06

That's great news. I have the part arriving tomorrow so I'll report back with how it goes.

Thanks again for your help and taking the time to respond so quickly. What a great forum this is.

Tom

Post by **precopster** » 15 Oct 2018, 16:08

When installed the sensor output on both sides should be between 1.35 and 1.45V.

Good luck

Golf2 · Post by **Golf2** » 24 Oct 2018, 03:43

Hi guys,

Just an update to say the Sacer installation went well and has fixed the issue. The car is now running perfectly with no fault codes.

Thanks for your help, especially precopster!

Tom

Post by **precopster** » 24 Oct 2018, 05:41

Hey NP. Glad it worked out!!

Just installed a SACER tps. Need help

Re: Just installed a SACER tps. Need help