Post
by rebuilder » Sun Jan 16, 2011 7:19 pm
Be the judge yourself, if you think you are gettin an unreasonable fuel economy, Say worse than 11L/100Ks Hway, and u seem to think ur getting roughly 12L/100Ks
Im guessing you have the EJ25D DOHC non turbo model?
if so , im sure you have no valve adjustments to worry about, so stick with the electronics as the root cause of the problem.
Take it in to your nearest "subaru service centre" (Not a subaru outlet) on a quiet day and wal in there liek u have money, and say, "HI can you please check the ECU (Fuel computer) for current faults or historical codes please"
They will take your car round the back adn plug there diagnostics computer in, better than any computer available at an auto store or ultratune or anything like that.
They knwo how to find whats wrong and they want to, coz they want ur money, electronci fuel injection systems are absed on expensive parts.
when they tell you wots wrong, say "KTHNXBAI" and get outa there and ring your nearest suabru parts centre (there are places which specialise in Subaru parts, but aren't subaru specific, these are the ppl you want to order parts from)
My guess in order of suspect is that you had either, bad MAF sensor, bad 02 sensor, or else a worn out engine (cam lobes and or compression rings)