Engine/Power - EJ25T (STI and 2006+ WRX) Discussions about the USDM 2006+ WRX and WRX STi 2.5 liter turbo flat-four.

Engine Check Light On!!! Help

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Old 11-02-2006, 10:38 PM
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Car Info: 06' Subaru IMPREZA WRX FP18g
Exclamation Engine Check Light On!!! Help

this the first time this happened! I got a code of: p0301, p0303 and p0304

2006 WRX Stage 2 map
invidia catted DP
HKS hi-power catback

p0301 (cylinder 1 misfire)
p0303 (cylinder 3 misfire)
p0304 (cylinder 4 misfire)

wen the motor is cold, trying to warm up wen i press on the gas for a just a bit, it stutters. then the check light when on!

CAN ANYBODY HELP OR SUGGEST ON WAT SHOULD I DO? THANKS GUYS!
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Old 11-03-2006, 08:45 AM
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anybody?
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Old 11-03-2006, 08:59 AM
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Car Info: Ver IV STi Wagon
How is the car running now?
I just threw a P0301, P0303 and a ????? CEL (according to a friend's COBB Accessport).

Similar circumstances to yours.

I reset the ECU, to clear the codes. IF they come back then I'll have to get it looked at.
But I am thinking it was a random missfire. Cold car, plus lighened flywheel are my thoughts on my CEL.

If you are really worried about it take it into the dealer. Otherwise I would just reset the ECU and drive it on the "normal" side for a day or two to see if the CEL comes back on.
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Old 11-03-2006, 09:07 AM
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Car Info: 06' Subaru IMPREZA WRX FP18g
Originally Posted by RedStage
How is the car running now?
I just threw a P0301, P0303 and a ????? CEL (according to a friend's COBB Accessport).

Similar circumstances to yours.

I reset the ECU, to clear the codes. IF they come back then I'll have to get it looked at.
But I am thinking it was a random missfire. Cold car, plus lighened flywheel are my thoughts on my CEL.

If you are really worried about it take it into the dealer. Otherwise I would just reset the ECU and drive it on the "normal" side for a day or two to see if the CEL comes back on.
i just reset the ecu also, now it runs fine...(car runs slow now) ill see wat happen for a couple of days and see if it comes back on. wen the motor is cold and trying to warm up, wen i press the gas for a bit (maybe like under 2k RPM) the car makes this rumble..stuttering the motor), NOW this is only wen the motor is cold, wen its warm its fine!

Does your do that? i prolly have a bad coil packs.
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Old 11-03-2006, 09:27 AM
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Originally Posted by lburrrna
wen the motor is cold and trying to warm up, wen i press the gas for a bit (maybe like under 2k RPM) the car makes this rumble..stuttering the motor), NOW this is only wen the motor is cold, wen its warm its fine!

Does your do that? i prolly have a bad coil packs.
No, mine doesn't do that. My car had clutch judder, but that is when you are engaging/disengaging the clutch. So definately not what you are experiencing (also I haven't heard of the 06's having this problem).

You might want to get that looked into.
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Old 11-03-2006, 09:42 AM
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Originally Posted by lburrrna
this the first time this happened! I got a code of: p0301, p0303 and p0304

2006 WRX Stage 2 map
invidia catted DP
HKS hi-power catback

p0301 (cylinder 1 misfire)
p0303 (cylinder 3 misfire)
p0304 (cylinder 4 misfire)

wen the motor is cold, trying to warm up wen i press on the gas for a just a bit, it stutters. then the check light when on!

CAN ANYBODY HELP OR SUGGEST ON WAT SHOULD I DO? THANKS GUYS!
I had codes po301 and po303 a few weeks ago. I called my buddy that works at subaru and he ran the codes and told me that its nothing to worry about Just a misfire code, I dunno about the p0304.... Didn't get that one. Let me know if you need anymore help -thekid925
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Old 11-03-2006, 10:18 AM
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Originally Posted by thekid925
I had codes po301 and po303 a few weeks ago. I called my buddy that works at subaru and he ran the codes and told me that its nothing to worry about Just a misfire code, I dunno about the p0304.... Didn't get that one. Let me know if you need anymore help -thekid925
oh cool right on! imma go ahead and check it again. if it comes back on, should i head up to the dealer? i dont want to take off my mods tho.
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