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Old 08-23-2006, 03:26 PM   #1
wrxnova1
Scooby Specialist
 
Member#: 112854
Join Date: Apr 2006
Chapter/Region: MAIC
Location: VA
Vehicle:
2004 STi
WRB

Default Changing Spark Plugs in a WRX 2.0T

My car is misfiring and drawing 2 check engine lights (P0300 AND P0301). I figured a good first step is to change my plugs being how I havent yet (at 40k miles). Ive searched the forums and the best walkthrough on how to do so came from a service manuel but it is not legible. The best link I have found is http://www.scoobymods.com/forums/att...achmentid=1038

Any help is appreciated. Thanks.
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Old 08-23-2006, 03:30 PM   #2
subieworx
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Member#: 47769
Join Date: Nov 2003
Chapter/Region: MWSOC
Default

Disconnect neg bat terminal.
1. Remove the air intake box.
2. Remove washer bottle
3. Disconnect clips on coil packs
4. Unscrew bolt on coil pack
5. Remove coil pack
6. Remove spark plugs
7. reverse
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Old 08-23-2006, 03:44 PM   #3
02WHITEDUB
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Member#: 96793
Join Date: Sep 2005
Chapter/Region: W. Canada
Location: Edmonton
Vehicle:
02 ProTuned TD04
Now with more clunks!

Default

Quote:
Originally Posted by subieworx
Disconnect neg bat terminal.
1. Remove the air intake box.
2. Remove washer bottle
3. Disconnect clips on coil packs
4. Unscrew bolt on coil pack
5. Remove coil pack
6. Remove spark plugs
7. reverse
^^Yup, it's fairly easy.

You'll want a few short socket extensions.
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Old 08-23-2006, 04:13 PM   #4
johsti
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Member#: 36049
Join Date: Apr 2003
Chapter/Region: BAIC
Location: San Jose
Vehicle:
2014 FXT Premium
Silver

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Old 08-23-2006, 04:41 PM   #5
Dizzy89
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Member#: 26589
Join Date: Oct 2002
Chapter/Region: SCIC
Location: North Hollywood
Vehicle:
2003 Impreza WRX
Sedona Red

Default

FYI, the same thing was happening to my WRX. CEL+Misfiring cylinders. Took it to Subaru, replaced spark plugs. A couple weeks later, happened again. This went on twice before the dealer just sent the ECU to Subaru for reprogramming. Fixed for free under warranty and they paid for the rental for the week. Make sure it's really the plugs that are causing the problem, because in my case, it wasn't.
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Old 08-23-2006, 05:03 PM   #6
wrxnova1
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Member#: 112854
Join Date: Apr 2006
Chapter/Region: MAIC
Location: VA
Vehicle:
2004 STi
WRB

Default

Quote:
Originally Posted by Dizzy89
FYI, the same thing was happening to my WRX. CEL+Misfiring cylinders. Took it to Subaru, replaced spark plugs. A couple weeks later, happened again. This went on twice before the dealer just sent the ECU to Subaru for reprogramming. Fixed for free under warranty and they paid for the rental for the week. Make sure it's really the plugs that are causing the problem, because in my case, it wasn't.
Did replacing the spark plugs temporarily fix the problem? Were you running any performance parts? Im currently running cobb stage 2. Thanks.
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