High idle when warm - TPS check??
Moderator: martauto
-
BurnsCrack
- E30 Zone Newbie
- Posts: 1
- Joined: Tue Sep 07, 2021 7:46 am
Hi all, my car has developed a 2k idle when warm - starts lovely when cold. I’ve checked all hoses and cleaned ICV and no joy. If I touch the underside of the TPS and there is wet oil there - does this indicate that I need to clean that? Is there any way to test the TPS is faulty without taking it off and without a voltmeter? (I lack both the skill and equipment!) big thanks for any thoughts here - bought the car last week - minter but already a glitch I’m keen to iron out so my love for it can grow!
Pics of the new car please! Unplug the TPS and clean the contacts with electrical contact cleaner. Oil in the tps is a common problem. Unfortunately to fix you need to take off and drill a small hole through the plastic cover on the S of the Bosch logo.BurnsCrack wrote: ↑Tue Sep 07, 2021 7:47 amHi all, my car has developed a 2k idle when warm - starts lovely when cold. I’ve checked all hoses and cleaned ICV and no joy. If I touch the underside of the TPS and there is wet oil there - does this indicate that I need to clean that? Is there any way to test the TPS is faulty without taking it off and without a voltmeter? (I lack both the skill and equipment!) big thanks for any thoughts here - bought the car last week - minter but already a glitch I’m keen to iron out so my love for it can grow!
To test the TPS without a voltmeter you can pull the throttle cable with the car off through its entire motion and listen for clicks inside the TPS, as far as I remember there should be 3 clicks, one at the start, one around the middle and one at the end but I may be remembering incorrectly so someone else will chime in and probably correct me.
But, it's really easy to test with a voltmeter, there is a guide on the wiki I think. I think you can do without removing the tps. I'd also look into cleaning your ICV and contacts. And also check the operation of the blue temp sensor (again guide is on the wiki)
