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Originally Posted by embe560sl
Thanks again, all I have to do now is find where the air flow throttle body is?
Could that be under the air filter?
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Remove the air filter housing....idle control valve is shiny aluminum dohicky just forward of the air flow meter...has two hoses to it and a two pin connector.... They get hard and crack.
The hoses, that is !
Put you finger on the air flap very gently, whilst engine is idling ....try to stop it from moving...see if surge goes away....if so this indicates a slow O2 sensor swing....I use a magnet on the center bolt to hold the air plate up against my fingers..
Have also seen air meter lower bellows split too...as well as other misplaced air hoses.
At the rear of air flow meter you'll see the throttle linkage...it should rest against a idle switch....small roller on an arm....make sure it does and it should click when opened or closed.....need engine off to hear that click though.
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