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Need help, engine sputters on '02 WRX

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Old 09-19-2005, 12:55 PM
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Wtf

hello, i thought by now she'd be running strong. a lean reading would be too much air and rich too much fuel hmm... what did the spark plugs look like? just this week i have noticed some engine stuble at idle and a noise from the throtle body intercooler area. i have a TMIC from a STI from what i've been told/read they never fit on perfect. i will keep eye on it but don't drive the wagon that much. iam sure someone on this forum will be able to help you find/fix the problem.
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Old 09-19-2005, 06:40 PM
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Car Info: 02 Impreza WRX sedan
Origami posted by 95 Avus Blue
OK guys, I had Autozone scan the codes. It came up as pre cat O2 sensor in cylinder bank 1.
Origami posted by VIBEELEVEN
What was the actual code?
Origami posted by 95 Avus Blue
The check engine light came on again, ran the code, cam up as bank 1 lean, again. What now guys?
95 Avus Blue, while not a guarantee of receiving advice which can solve your problem, you really should consider posting the actual alphanumeric trouble code, instead of the lookup English translation of the cause on a chart. Some of the errors are similar in wording but the causes of the problem can be different.

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0==WW==0
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Old 09-19-2005, 07:32 PM
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Originally Posted by Wingless Wonder
95 Avus Blue, while not a guarantee of receiving advice which can solve your problem, you really should consider posting the actual alphanumeric trouble code, instead of the lookup English translation of the cause on a chart. Some of the errors are similar in wording but the causes of the problem can be different.

--
0==WW==0
"…axles of evil…" - george w. bush
Wingless Wonder, I did not look up "English translation". It is exactly what the code scan read in English, not nubmers. Thanks for the ssuggestion.
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Old 09-20-2005, 01:15 AM
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check for vaccume leaks or intake manifold gasket leaks around bank 1. mixtres on both sides should be off if the gaskets are leaking. i have see this in a few other types of cars. havent gotten my hands on a high milage problematic subie yet.

i see your name is avus blue. did you have a bmw before?
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Old 09-20-2005, 06:24 AM
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adrian, I still have the M3.
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Old 09-20-2005, 10:34 PM
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Originally Posted by 95 Avus Blue
adrian, I still have the M3.
nice i have one too. anyway back to your problem. have you tried what i posted? let up know your results.
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Old 09-20-2005, 10:38 PM
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how do I check for leaks? Never did that before. Do I have to buy a tester? Thanks.
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Old 09-25-2005, 09:15 PM
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I replaced the fuel pressure regulator yesterday, it still sputters.

Last edited by 95 Avus Blue; 09-26-2005 at 08:16 AM.
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Old 09-27-2005, 06:25 AM
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Need help, engine sputters on 02' WRX

hello, check for leaks with soapy water around bov, intercooler to throtle body hose, and turbo inlet hose. first listen. then look for bubbles after you apply H20 and soap mix. lol
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Old 09-27-2005, 01:30 PM
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Originally Posted by 95 Avus Blue
I replaced the fuel pressure regulator yesterday, it still sputters.

well thats because you didnt diagnose the car like i posted above. dont just throw parts at it. alot of ppl will tell you "well i had they same problem one time and it was this" but that was their car and not yours. Take the time and diagnose your car. there now are several methods of doing it posted here on the forum.
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Old 09-27-2005, 01:32 PM
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Originally Posted by 95 Avus Blue
how do I check for leaks? Never did that before. Do I have to buy a tester? Thanks.
no tester, just sray water, carb clean, water /soap, ect. anything you can use to see a change in rpm once the leak is stoped. you can also get close to the manifold with your ear and see if there is a deffinate leak that you can hear.
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Old 09-27-2005, 02:16 PM
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Well guys, I may have gotten rid of the sputtering. I drove the car last night, and it seemed like its almost not sputtering, and then today its still not sputtering.

Well not the same anyway. Sometimes, and I mean only sometimes she might give a hint of hesitation, but its worlds better than before.

Thanks to all of your suggestions. If the problem returns, I'll be back.
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Old 09-27-2005, 03:30 PM
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Need help, engine aputters on '02 WRX

Sweet
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Old 10-29-2005, 11:08 PM
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What did you do?

What did you do to stop the sputtering? Was there a leak?
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Old 10-30-2005, 07:46 AM
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Originally Posted by seod
What did you do to stop the sputtering? Was there a leak?
It was a dirty Maf, I cleaned it.
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