Questions & Answers for: Subaru Impreza WRX STi air filter

...kicks in better hi can anyone tell me, my turbo kicks in alot better cold than when hot ? Cold air is more dense, so that makes perfect sense. Also, a turbo compresses the air, which heats it

...air filter and fuel filter Just brought 1999 Wrx STI. The air filter and fuel filter need changing. Can this be done by myself? The air filter seems straight forward but the fuel filter??? Also ...

just wondering where the air flow temp sensor is on a 99 wrx thanks at or near the air cleaner

...and alternator belt broke a month or so ago on my '02 Surbaru Wrx Impreza turbo model and now my air conditioner won't work. The light turns on but there isn't any cold air that blows out. Turning ...

change oil on transmission subaru sti 2007 remove pan at bottom of trans drain oil, replace filter

try starting car but wont start take pipes off fuel filter was no fuel pumping thougth wot is the problem Either out of gas, clogged line or bad fuel pump.

...,idling lumpy You need it plugged in to read the live data but it sounds like a very common mass air flow failure, the live data will show this up. The mass air flow will have a real big impact on ...

97 wrx sti running rough when accelerating Could be clogged injectors, bad fuel filter or bad fuel pump. Do you hear a hissing sound when accelerating?

...15 Injector no.2 16 Injector no.3 17 Injector No.4 21 Engine temp sensor 22 Knock sensor 23 Mass air flow sensor 24 Idle air control sensor (usually accompanied by running too fast/slow) 31 ...

...the more expensive. I would begin with a tune up. new plugs and wires, oil change, and air filter. if you don't get any better performance change the fuel filter. see how it goes from