Throttle Position Sensor-Range Rover


You're on the right track as I've cured this problem several times by simply cleaning the black gook off the steppers plunger as well as the seat in the plenum that it mates with. Brake cleaner seems to work. Then once when that wouldn't do the trick, it did turn out to be a throttle pot gone bad. You can check it by connecting an analog ohm meter across the business pins and moving the pot through its sweep. The needle shouldn't glitch at any point. Try cleaning the plunger first, as it probably needs it anyway. 
Randall


I found this website to repair the potentiometer:

http://members.optushome.com.au/pheatsol/rover/tps/online.html

What do you guys think? Anybody ever try this?

Larry M.

 

 

 

 

 

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