Thread: Misfire CEL
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Old Nov 2, 2007 | 06:13 PM
  #20 (permalink)  
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im2wrxy
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Originally Posted by SnowMann
257 shortblock
WRX heads
Up/DP
VF39
565cc
CAI
SSAC FMIC

I did the tune. It'll run great while Im in it...
He'll leave and the code pops within a few days (at the most). I know Craig has tried several different temp plugs/gapping w/o success. FWIW: this isnt something new for some 2.5 Hybrids...hopefully we'll get it figured out soon.
Exactly..thanks Jeff!

I want to get the pressure issue fixed first and then we can get together and see if we can work this out. I'm going to swap my inlet tomorrow and check the up pipe gaskets, clean my MAF, and put one step colder plugs in and we'll see what happens.

Here's what I know. the car does not like the plugs gapped at .030 at all. the code comes back within minutes and the car noticeably misses. It runs best with plain old copper Autolites; platinums and iridiums make it worse. So, I'm going to put the one step colder copper Autolite plugs in but increase the gap...maybe it will clean up some of the firing issues.

I'll post again tomorrow when I get done. Oh BTW, whats the best way to clean the MAF?

Craig
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