Ehh. sounds kinda involved. I just ended up spraying the **** outta it. and shoved rags down there and cleaned It as best I could. also cleaned the iat thing that's on the mani. and it still revs on me. seems like only when its warmed up. oh and I noticed that my exhaust mani has like a 2-2.5 inch crack in it? not sure how deep but its by the o2. could this be causing the reving??




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bump??????


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Actually, I have the same problem, mine, hangs at 1500 rpm. I've, red some where, that the speedsensor is down, our the idler controler.
Try to dis conect the plug from the sensor, and see what hapens.

 

Common crack. It very well could be causing it to run funny. From what i have seen in the past, the crack hasn't affecting any of my cars from running correctly. Its more then likely a vacuum leak (vacuum line, diagram, intake manifold, injector seals. Or its the IAC which stands for Idle air control valve. It controls the flow of air at idle, to keep it idling normal.

 

Just went out for a soda. If I'm under 1500 rpm, it goes down to idle as normal. If I rew it past that, it first stop at 15-1600 rpm, and slowly down to 1000 rpm.
Did not disconect the IAC.

 

yeah cept mine goes to 3-4k and hangs there. I cleaned all the sensors cept the vss. can those be cleaned off??


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What is vss?

 

Vehicle speed sensors. Usually effects manuals when coming to a stop. Usually makes the idle lower then it should be. I am sticking to my guns with a vacuum leak or bad Idle Air Control valve. The valve meters how much air is let into the motor to achieve the desired idle. Vacuum leak will make the car rev up also. A vacuum leak causes the air to bypass the throttle body, making the engine rev up like your pushing the gas. The idle may never be consistent because the Idle Air Control valve is trying to get it back to normal but is having a hard time. I would start with a vacuum or smoke tester, then throw in a used IAC sensor if you find no leaks. Be sure to have the key in the "on" postilion when testing vacuum.

 

Ok

 

I will do this tomarrow thanks for all.the info. I think its a vac leak also now


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