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Franke · 07-23-2013

Its a sealed unit from what I can see so as to protect it from the enviroment. A voltmeter or Ohm meter can be used to check it. Since it is attached to the throttle shaft then it could be verified off the car with an "arm" to watch the resistance change. Most of the defective ones i've seen are bad just off idle position. The FSM doesn't state that it is linear, that is my assumption. If it was logarithmic then the throttle response would be somewhat erratic I think.

07-23-2013	#5
Franke Join Date: May 2013 Location: Beaver, PA Posts: 515	Re: TPS response... Its a sealed unit from what I can see so as to protect it from the enviroment. A voltmeter or Ohm meter can be used to check it. Since it is attached to the throttle shaft then it could be verified off the car with an "arm" to watch the resistance change. Most of the defective ones i've seen are bad just off idle position. The FSM doesn't state that it is linear, that is my assumption. If it was logarithmic then the throttle response would be somewhat erratic I think.