1g dying in neutral?

[Tom Sawyer]

I'm trying to work the bugs out of my buddy's GVR4. The car has recently started dying when putting the car in neutral. When it dies there is no hesitation anywhere near idle, it just flops all the way from say 4k RPM to 0...dead. I'm curious if it might be the ISC ("idle speed controller" I believe)? Other suggestions as to what it might be? If that is possible, what is a normal reading for the ISC on a logger at idle, under load, etc as we just got a logger hooked up. Any help is greatly appreciated as this is his daily driver.

Tom

 

[98TsiAWD]

Pull out the ISC Motor, pull it up where you can see it, then have someone get in the car and turn the ignition on, but dont start the car.
The black plunger looking thing should move in and out when you turn the key on. If it just vibrates or turns in a half circle or something it is shot.
Thread moved.

 

[Vegas Smith]

If you have a hacked mas then your idle could be too low causing the rpm's to never "catch" as they are coming down from say 4k when you shift. I have that problem, sometimes ill go into neutral at a light or something and the rpm's go straight to 0. I bumped up the idle a bit and it neverd did it again. Hope that helped.

 

[Blam]

I had the same problem as well....would be fine when i drove but once I went to idle BOOM car shut off. I changed my fuel filter and problem hasnt come back?