Running really bad and can't figure it out...
I have a 2004 wrx. I got the car about six months ago. after about 1 month the CEL came on; it was the air/fuel ratio sensor. It ran good for about another month, then it started to run like the same sensor was bad, but this time got no code for it, so it was not replaced.
-It's showing codes for running rich, and intermitent missfires on various cylinders.
-It will not rev past 4k more or less. It falls right on it's face. Going uphill its even worse.
-black smoke puffs when it hits about 4k.
-only 7psi of boost
-sometimes it idles rough.
-temp and humidity change effect it.
mods that I know of:
-K&N typhoon intake
-atmospheric BOV (that is rusted shut)
-apexi autotimer (that does not work)
things we have tried:
-new BOV (it made no difference at all, except for the sound)
-tried manual bc (made about 12psi, but problems were still there)
-checked voltage to boost selenoid (was okay)
-Cobb AP stage 1 (nade no difference)
i'm going to put new plugs in it and checking the coils.
I noticed that a wire that goes into the exhaust pipe in front of the turbo is kinda loose. it has a metal housing on it where goes onto the pipe. maybe it supposed to be like that i'm not sure. the other end of the wires plug into the housing up near the boost selenoid. it looks like a temp or O2 sensor.
The dealer said they can't fix it because they don't know the problem is. My tuner is trying to avoid the old "lets start replacing parts until we fix it" routine. Has anybody had something like this happen to them?
It's really bugging me because i can't really drive the car, it barely goes 65 on the highway.
Last edited by Squamr; 07-30-2008 at 01:51 PM.
Reason: spelling and grammer