Since I am replacing my fan clutch, fan clutch bearing bracket I decided I'd get to the bottom of my HIGH idle problem. As I have mensioned in previous posts I am running the car without the Idle Control Valve plugged in. As indicated by Duke 2.6 that a faulty throttle switch might be the issue. Well yesterday I took the air-flow meter housing off with the fuel distributer attached. I was able to get the throttle valve body off, the gasket got destroyed but it didnt seem like the gasket was to blame, it appeared to be solid all around except where I lifted the body up and tore the gasket.

Anyway I just need to know whether I can do some sort of test to figure out whether the switch is working properly or not.

Also will a throttle body from a 2.3L engine fit on a 2.6L?

Lastly I have looked up throttle bodies on the internet and they all seem to say 'w ASR or w/o ASR' what does this 'ASR' mean?


Thanks many.

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190e 2.6 1990. 300,000 KM
C230 K 2000, 130,000 KM