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Franke · 07-22-2013

Vettetech1, throttle position sensors are famous for off idle sag. They can be tested with a ohm meter to see if there is a dip in the resistance just as the sensor starts to move off idle. Its a potentiometer and varies the voltage to the ecm.

07-22-2013	#17
Franke Join Date: May 2013 Location: Beaver, PA Posts: 515	Re: 92 Z NIGHTMARE Vettetech1, throttle position sensors are famous for off idle sag. They can be tested with a ohm meter to see if there is a dip in the resistance just as the sensor starts to move off idle. Its a potentiometer and varies the voltage to the ecm.