I have an 02 wrx with 145xxx miles on it and I'm getting the all four cylinder misfire codes randomly appearing.
I read the sticky, and that's why I'm starting the thread.
I think I've screwed myself, I got a lightened flywheel months back when my stocker was blued and cracked... It's an ACT street lite and I thought I read it would not cause codes, but that may only be for 2.5s...
I have changed plugs to NGKs, replaced two coil packs and replaced the knock sensor. But nothing has solved the issue. I do not feel the misfires and my mpg is fine for a car with as many miles as it has.
Can the crank sensor sensitivity be tuned out with a Cobb AP? I did a little reading, and the DTCs can be disabled but what are/is DTCs?
Can I clean the maf with brake cleaner or a similar solvent?