friendly_jacek
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Everything posted by friendly_jacek
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I like your padding post total comment! Like one would care (not); go ahead and pad yours! I was gently trying to steer you to valuable past discussions here, like: http://www.ultimatesubaru.org/forum/showthread.php?t=30297&highlight=spark+plugs+platinum I guess, it backfired. Thanks for your suggestion, I will change my moniker to unfriendly. Wait, friendly was just sarcasm!
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Blitz, you're da man! I will check the pressure today when I get ahold of a gauge. I totally makes sense for that to be excessive. The ECU reports -11% long term fuel trim. Meaning that computer substracts 11% fuel to make the O2 sensors happy. Obviously, in open loop, the engine gets the excessive 11% fuel. Since all sensors work fine (it is so much easier to test MAP vs. MAF!), this points to fuel delivery. SevenSisters, The 16 MPG is with trips less than 10 miles, more like 3-4 miles or so (my wife has a short commute). But it used to be more like 20 when the car was new. Furthermore, I never got more than 25 MPG, even with pure, long distance hwy trips. I used techron and redline injector cleaners on many occasions. If the fuel pressure is correct, I will go after the injectors.
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Well, it's alabama, so not that cold (freezing once, maybe twice a year :-) Fuel in oil content is a part of every standard oil analysis. I did the analysis in part to prove the problem to the dealer under warranty. Those "factory trained" idiots never ever heard of oil analysis. Now, the car is out of warranty, so I can play with the engine a little, just don't know where to start. To summarize, close loop operation is fine, it is the open loop I am concerned about.