Engine/Power - EJ20T (pre-2006 WRX and JDM) There is replacement for displacement, it is forced induction - OEM 2.0 liter turbo engines in the USDM WRX. 90-94 Legacy Turbo EJ22 turbo engines can also be discussed here.

Engine Misfire HELP!!!!

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Old Oct 10, 2004 | 07:19 PM
  #1  
wonton2049's Avatar
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From: Las Vegas
Car Info: 2005 STI
Engine Misfire HELP!!!!

Hi.... arghhh.... Im having so many problems with my car that I should have all white hairs by now (such a long and ridiculous story). Just curious if anyone knows what the problem might be.

i got a CEL p0301 and p0302. Misfires in cylinders 1 and 2. any suggestions?

plugs? injectors? big problem? little problem?

have no warranty..... dont ask.

car is a
2002 subaru impreza wrx
up pipe
dp
cat back
k&n filter
Accessport

with all the problems i had up till now, wondering if its possible to swap out my engine with the least amount of work. i dont want JDM cuz of price, so i was thinkin of the 04 STI ej25 w/ tranny. I know i need a new driveshaft with this but what else? couldnt find much else on here.
Old Oct 10, 2004 | 08:21 PM
  #2  
WRX Rush's Avatar
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Car Info: Stage 4+ Bugeye
How many miles does your car have on it ?

For now drive your car conservitive until you get the plugs changed. That is my suggestion for now. It sounds like your plugs are fouled and need to be replaced.

Cheers
Rush
Old Oct 10, 2004 | 09:35 PM
  #3  
wonton2049's Avatar
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you are the man rush.... thanks. hey, by any chance, you know how im suppose to change it? where the plugs are located i mean? i never bothered to look.
Old Oct 10, 2004 | 09:36 PM
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wonton2049's Avatar
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oh yeah.... i also read that there was a colder set of plugs by NGK that people use.... anyone know of the part number? i know they're kinda hard to find.
Old Oct 10, 2004 | 09:46 PM
  #5  
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Car Info: 2002 WRX
was this a one time missfire or does it happen all the time. If so does it happen when you drive the car hard or at idel. I run a access port and every once and a while i will through a missfire like that, but not all the time. How many miles do you have on your car and when was the last time you changed your plugs? If you can answer those questions ill ask the guys at the shop if they have heard of that happening with the AP before. You can email me if you have anymore questions at Ryan@finelineimports.net
Old Oct 10, 2004 | 09:47 PM
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WRX Rush's Avatar
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The plugs are located, since it is a horizontally opposed engine, the spark plugs are on the sides of the engine.

So that requires moving the wash bottle, air intake box, and a bunch of other things. I would suggest having them professionally installed if you are not completely mechanically inclined

Also a great site to get the spark plugs is http://fastwrx.com/denirsparplu.html

Cheers
Rush
Old Oct 10, 2004 | 10:24 PM
  #7  
wonton2049's Avatar
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cool thanks a lot. i should be able to do it ok. this is the first time i ever got the code. i cleared it just a little bit ago. I am taking it a lot easier on it. im prolly gonna order plugs for it tonight. thanks for the help guys.
Old Oct 10, 2004 | 10:54 PM
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Car Info: 1993/2000/2001 GF4 mostly red
Here's another spark plug install guide: http://www.scoobymods.com/forums/showthread.php?t=511

the NGK part number is BKR7E for coppers. They give the best spark, but have a replacement interval of 15-20k miles. you'll know they need changing when you start throwing misfire codes again.
Old Nov 14, 2004 | 03:25 PM
  #10  
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Car Info: Giant Bowery '84
Originally Posted by BAN SUVS
Here's another spark plug install guide: http://www.scoobymods.com/forums/showthread.php?t=511

the NGK part number is BKR7E for coppers. They give the best spark, but have a replacement interval of 15-20k miles. you'll know they need changing when you start throwing misfire codes again.
15-20k? oops.. i just got my first CEL P0301 and P0303 to be exact at 38000 miles. Guess its time for me to get my plugs changed.
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