I bought a turbo'd GSR about 4 months ago. After wrestling with the turbo back and forth i decided to sell the turbo kit and just go N/A. I sold all my turbo pieces and bought Aftermarket N/A parts.

I replaced the injectors with the H series injectors, and replaced all the vacuum lines. I got every thing in, but i am having a low idle problem when the car is in neatrual or when i am going to a stop, it would get so low that it would shut off.
The car idles about 200 rpm before shutting off which is WAY too low.

My friend and i checked the MAF, and checked the timing. They were both good. The car isn't throwing any codes either.

So bascially my question is what would cause low idle ? The one's i can think of is currently

1. Vacuum leak
2. Injectors are bad ?
3. IACV <--- but if this is bad wouldn't the ecu throw a code ?

So i am thinking about re-looking through my vacuum, and giving it a minor tune up.

Any one else had this problem of VERY LOW IDLE ( so low that it would just bog, and shut off in every stop, and neatrual position of gear ).

Well thanks in advance,
-Jee

 

Have you adjusted the idle via the idle screw?