hey guys a couple of weeks ago my clutch started slipping when i hit boost, it would also backfire and sit at(like it was redlining) 4000rpm if i gave it shit. i just thought that the backfiring was due to clutch problems, but now that ive put a new clutch in it is still backfiring, coughing and spluttering whenever the accelerator goes down...

dads a mechanic, and he thinks its something to do with the ignition side of things (eg. spark plugs), but i pulled them out and there fine

but if anyone can help it will save me $198 to get subaru to plug it into their diagnosis machine

I drive a MY00 limited GC8

Observations:
-idles fine
-will drive without boost fine
-still backfires with the intercooler off (dad did it for some reason)
-gets worse in colder weather
-will backfire if i pump the accelerator when i am cruising in gear

Mods:
-3"TBE
-silicone turbo pipe
-apexi pod filter
-exedy OEM replacement clutch (if that helps)

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Winning the award for slowest build in history.

Air Flow Meter playing up - you have a pod filter.. its THE most common problem with the GC8's and aftermarket filters/blow off valves

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[SIGPIC][/SIGPIC]

have yoU checked all your intercooler piping i had a similar problem when i had a split Y-pipe? and when my coil pack on my gc8 started to fail...

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if its the MY00 in your avatar, then air flow meter needs replacing would be my bet

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MY93 Impreza GX 1.8L, 0hp, 0nm

If you want to try another coilpack,I have a spare one you can borrow to try out.
Terry
0418925005

+1 for AFM

Have you checked your injectors??

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....slow and steady wins the race....fark that!!

Daren stop pretending you know what your talking about.

Try AFM first, faulty coil pack is more likely to cause misfire, rather than backfire

hence the question marks ????

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....slow and steady wins the race....fark that!!

hey thanks guys

I'm going to try the spare coil pack to start off with

and also would it be an idea to take it to subaru before i buy a new AFM? considering the price of one? or is it definitely the AFM?

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Winning the award for slowest build in history.

You can pretty guarantee its the AFM on my99/00 models. Buy a new one. They aren't all that expensive. Around $200 IIRC for smooth trouble free driving and no risk of blowing your engine if you decide to give some boot.

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RS Liberty - Because WRX's are only good for parts...