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Old 12-15-2009, 12:45 AM   #1
Scooby Newbie
Member#: 163695
Join Date: Nov 2007
Default CEL troubles codes thrown, need help plz

Hey Subi Fam, I've encountered my first issue after 3yrs of owning my '04 Sti. Today I was driving to work when I noticed a slight "sputtering", barely noticable. Then when I got on the freeway in 5th gear, i stepped on it to pass a car when all of a sudden it bogged down for a second. After that my rpms came back up but then my engine light came on along with a flashing cruise control light. So I took it easy driving to work and home. When I got home this evening, I pulled out the accessport to get the trouble codes. They are as follows, P0301, P0302, P0303, P0304 (cylinder misfires), and P0244 (Turbo wastegate selenoid "A" range/performance). I dont have many mods on my car, just a aem cai, exedy stg. 2 clutch, prodrive downpipe, turboXS tbe, and ap stage 2 map. Can somebody help me please as to what might be causing this. Thanks for any help that can be provided.
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Stylz916 is offline   Reply With Quote
Old 12-15-2009, 03:41 AM   #2
Scooby Specialist
Member#: 187798
Join Date: Aug 2008
Chapter/Region: MWSOC
Location: Elk Grove Village IL
04 2 liters of


It sounds like you over boosted, could be the cold weather and you should consult your tuner. My take on CEL's is that if they pop up once and go away, ignore them until they come back again, most times with misfires, they dont. If it does, it's something worth looking into. Check your coil packs to make sure the connections are REALLY good. Also, check your plugs for any sign of being fouled and for proper gap.

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Old 02-21-2010, 08:47 AM   #3
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Join Date: Feb 2010

over boosted
jmb8806wrx2006 is offline   Reply With Quote

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