Bad Idle Searched =-D

[91TTZ32]

Had the car re-aligned then 2 days later all the sudden out of the blue car has terribly low idle, and will stall comming to a stop. no major boost leaks, vacuum is fine, recirculating the BoV and the ISC also alright. What did i miss? cars a 95 tsi 150k miles. Any help would be awesome, thanks.

 

[JDNSBR]

no major boost leaks.

What do you call "major boost leaks"? Any type of vacuum or boost leak will create problems. I would boost leak the vehicle and see what you find. This would be the first step. Also, check your biss screw. This could need adjusted or it might have gone to the DSM Gods.

 

[blackGSX2g]

What do you call "major boost leaks"? Any type of vacuum or boost leak will create problems.

Exactly. Visual boost leaks do not count. Fill it with air pressure and listen. You can spray soapy water on places that might be harder to see, i.e. throttle body area.

Once you've completed the boost leak test, try backing out the BISS screw located on the top of your throttle body. This lets in more air and raises your idle.

 

[will90Eclipse]

Once you've completed the boost leak test, try backing out the BISS screw located on the top of your throttle body. This lets in more air and raises your idle.

If you try the BISS screw make sure you ground this two wires. I did it today with my car and it idles great


Here is the thread http://www.vfaq.com/mods/BISS-1G.html