I have a strange problem here, with even a stranger story. When I first got my car, it would stall whenever I put it on neutral and let off the gas. Then, after about a month, that problem went away. I figured it was because the car had been sitting for a year, and needed to clean itself out or whatever. Well, I have been driving it almost a year now, and the problem has started again. Not after beating on it or anything, just one day I started it and it bogged down and died.

It doesn't always stall either, sometimes it will just bog down to about 400rpm, and jump back to about 1000. It also does it when I start the car, it will bog down and sometimes stall.

Has anyone else had this problem? Is it spark plugs or something? I bought the Bosch 4+ Platinum plugs, but I heard they are total crap after about 2k miles.... .... .... help!

 

better check your IAC valve. clean or replace it

 

IAC... ... ... what is that? And where might I find it? Thanks for the info!

 

It is located on the underside of your throttle body (TB).
Remove the TB and pull the IAC cover - I think it was like 6 small bolts holding it on.
Take the IAC apart and clean it out real well.
I used brake cleaning fuild on mine to get the gunk out and then let it dry for awhile before re-assembling the TB.

Reset your IAC in accordance with the tech article and see if that makes a difference.

Tech article - https://www.thirdgen.org/newdesign/tech/tpimod2.shtml

Get a few more opinions before you attack this one.

Some guys might have gone about this differently than I have.

BTW - having the TB off is a perfect time to do a TB bypass if you haven't done one already.
https://www.thirdgen.org/newdesign/t...ntbypass.shtml

 

Really sounds like a lazy IAC. If it happened more when driving and slowing dwn then that could also indicate no VSS signal to the ECM.