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Idling issues please help

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boostedgst2984

15+ Year Contributor
210
4
May 5, 2004
pasadena, Maryland
Ive tried just about everything I cannot get my car to idle properly. I dont know what to do. Ive tried to replace 02 sensor help alot but still wont idle. I have a 6bolt swap and everything and it ran fine for 6 months. then i had the problem when i pushed clutch in during shifting the rpms would jump by 1000k but i replaced o2 sensor and that fixed that problem. I just cant get the car to idle. I have no smoking issues or anythign comming out the exhaust. Car runs and pulls hard no studdering threw rpm band right up to redline. I have a video if anyone would like to hear it just let me know.
 
Have you pressurized the intake yet to check for leaks?
Checked the ISC for proper operation?
 
A few things you could try:

Coolant temp sensor
ISC
Make sure your BISS screw didn't fall out.
Make sure that the ground didn't fall off your intake manifold, if it did that can cause weird idleing problems as well.

CRAIG
 
how can i pressurize the intake and where does the ground hook up to the intake manifold. Also how do i check the isc motor for proper functionality thanx
 
The ground wire is on the bottom of the intake manifold. And to test the ISC, just find a known good one and put it in and see if it changes. You don't need to pressurize the intake manifold to see if the BISS is gone, just look at it and make sure the screw is in the hole.

CRAIG
 
the biss is still there and im thinking its a grounding issue but i have to get under the car to look which i will do tomorrow. Also im having problems with my air fuel guage it wont bounce and i just put new 02 sensor in do i have to hook up directly to the o2 sensor sender wire??
 
I checked for the ground on the intake manifold and i cant find it anywhere theres not even a loose wiring haning around for it.
 
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