Spent two days trying to figure out what was up with the car. I drove around causing it to misfire while datalogging, the car was running super rich, in one bank, super lean in the other. Swapped out the injectors for 21lbers and it ran so lean that I was afraid I'd blow the motor. Checked for vac leaks, found a tiny one on the fuel pressure regulator. Still no cigar! GRRR! What to do what to do. Took it out again and it began misfiring even at idle.
This was a good thing, now I could narrow it down to one cylinder. Swapped coil packs between two and it was still misfiring on the original cylinder. Now I'm feeling REAL stupid for not checking this in the first place... Swapped out the spark plugs and what do ya know, the misfire switched cylinders. 30 bucks later and the car was running perfectly!!
Here are some videos of me having some fun in the car:
http://www.youtube.com/watch?v=pgTtPNxe5rg Here is a video of when it was running OK with the old spark plugs.
http://www.youtube.com/watch?v=uYjsJmujHsY Did another couple pulls with the M3, and took it to the strip yesterday.
The car only pulls on the M3 up above 6k RPM, and I only ran a 14.6 at the track with a good launch and semi quick shifts..
This leads me to believe that Active Autowerkes tuned my car for cams, since it is still throwing a CEL for running way too rich, and because they only offer a 24lb/hr tune for a car equipped with cams.. The car never goes into closed loop mode at WOT(drops O2 sensors out of the equation) either. So I don't think it's making full power just yet.
I will be ordering some Schrick cams in a couple of weeks, I will call up AA and see what kinda tune they actually put on the car too.
Any way, that's all folks!
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