So, I switched my car from E85 back to BP92 the other day. I tweaked my old pump gas map just a hair so that it'd run a hair richer (from 11.5 to 11.0) on my way to work. Car ran great, zero problems.

Go to drive car home, flip on the logger and proceed to cruise home through traffic. I don't end up getting on it until about half-way home, on an on-ramp. Right around 5000rpms, I hit what seems to be fuel cut.

I have all my boost limit tables at 319 (max), and even set the timer to 9999ms. IDC is in the 55% area at high rpm, and I'm nowhere near that at 5000rpms. Wideband looks like fuel just gets cut off, but injectors seem to keep going if I stay in it.

The weird thing is, if I stay in it, sometimes it will almost act like NLTS. So, I disabled NLTS. Still happens, and then logged injector pulse width, and injectors are sorta staying on....no CEL, everythign seems plugged in, etc.

Here's my logs:


Historical info on what's happened recently:
http://mitsustyle.com/forums/showthread.php?t=21778

Any ideas?

 

Found the problem

Looks like my MAF gave up its life for the airfilter shootout. And my perrin filter is due to arrive on monday. Now I remember why I dislike this style of filter!





This same thing happened on my 2G DSM, but that car had MAF-T on it in blow-through. I had a bastard20g/sleeper16g on the car at the time (thank god!) so the metal cap got stuck in the turbo inlet, about 5mm from the compressor wheel.

Anyone got a good condition maf for sale?

 

Ouch, that's pretty rough. Sorry to see your maf had to take the abuse for testing purposes. Oh, I have seen 2 used maf's on ebay for a pretty low price so far, so you might want to check them out too.


Good luck!

 

Props to the Maf for its heroism.