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Throttle Position Switch Specifications 200 1989

posted by  pomp on  Mon Jul 1 04:12 CST 2002
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last visit: Thu Jan 18 01:20 CST 2001
[RELATED]

does anyone have the specifications for the throttle position switch? resistance and all that stuff?
pomp








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Throttle Position Switch Specifications 200 1989

posted by  someone claiming to be TomD on  Mon Jul 1 11:00 CST 2002 [RELATED]

pomp,

According to my Bentley, your '89 would have the LH-2.4 system which would indicate:

Throttle switch idle position: at throttle closed ----> continuity
(testing at at throttle open ----> no continuity
ECU connector 2 and ground)


Throttle switch full throttle: throttle fully open ---> continuity
(testing at throttle not fully open --> no continuity
ECU connector 3 and ground)

It appears that it wasn't until LH-3.1 that they put an actual variable resistance sensor.

Hope that helps,

TomD








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Throttle Position Switch Specifications 200 1989

posted by  someone claiming to be TomD on  Mon Jul 1 11:21 CST 2002 [RELATED]

Sorry about the formatting problem on my previous message... it appears to have gotten mixed up... dropped my extra spaces:

pomp,

According to my Bentley, your '89 would have the LH-2.4 system which would indicate:

(testing between ECU connector 2 and ground)
Throttle switch idle position:
at throttle closed ----> continuity
at throttle open ----> no continuity


(testing between ECU connector 3 and ground)
Throttle switch full throttle:
throttle fully open ---> continuity
throttle not fully open --> no continuity

It appears that it wasn't until LH-3.1 that they put an actual variable resistance sensor.

Hope that helps,

TomD







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