So I was out last night driving around and after a good 2nd->3rd gear run, I put the car in neutral and coast like I always do, but then it died. I got it restarted but it wouldnt hold an idle. It just kept dying. Now before I continue, it is worth mentioning that my car is running VERY rich in the higher boost ranges. I was in the process of tuning it last night.

But anyways, now it wont idle at all unless I have my foot on the throttle just a little bit. Got it home and compression tested it to find 90-90-90 front and 90-90-90 rear. Not bad for a Jsepc engine thats two years old.

So I dont understand what my problem is here. It was idling GREAT before and now it wont do it, or barely does it ( 500rpm ). I checked the few hoses that I have and checked the integrity of all my sensors via the laptop and everything is fine.

Sorry if this is scatter brained...Its late and I just dont know what the problem could be. Any help would be greatly appreciated.

 

Triple check it is not a vacuum leak or maybe even a leaky injector. Maybe the timing got moved because the bolt wasn't tight? Just a few thoughts.