2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

Idle high and bogs when on throttle

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Old Dec 28, 2007 | 03:27 PM
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Idle high and bogs when on throttle

Ok first here's the specs

S5 with absolutely NO SMOG...removed rats nest, pump, capped off all vacuum lines and ran the ones i need yadda yadda...5 and 6 ports gone and welded shut.

Now... the car ran fine until this messed up cold weather. In the morning it starts right up but holds rev at about 2400 rpm. NOTE: I always start it in gear to bypass cold start BS so it should immediately fall to normal idle which in my case is 850 RPM but it wont. Even if i fully warm it up and go WOT it'll stay at about 2400 RPMs and its annoying. No vacuum leaks and the idle was set ok so it couldnt be that but i could be wrong.

Another thing. When I Drive to work in the morning the car bogs crazy unless I keep it above 3000 RPM. After about ten minutes of driving it goes to a normal and smooth acceleration. TPS??? I dont know...its weird.

Thanks in advance for any help


~Eddie
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