This only happens when the car has been running and is at normal operation temps (car engine is stock vq30de-k, manual tranny). When I start my car the rpm usually jumps to under 2000rpm and then falls like it should, but sometimes it falls to 0rpm and stalls. It is easily fixed by me hitting the gas before it gets to 0rpm, but then its normal. Happenes too on the road when i let off the gas and hit the clutch, rpm falls to idol but falls to 0rpm and stalls. Any ideas on what would cause this?

 

go get your idle readjusted

 

idle rpm is fine, just sometimes when it falls it drops below bog and stalls. happends about twice a week.

 

clogged injectors?

 

J00r engine is teh blown. Sell it to me for $300!!!!

 

IACV valve might need cleaning? Tune up?

 

tune up, i think you have a vacume leak somewhere