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Old 10-07-2012, 11:25 PM   #1
cnlor
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Default 2006 wrx stock spark plugs misfiring?

I have new oem spark plugs in my 2006 wrx. (5000 miles)

Mods: built block, 20g, 1000cc, fmic, tgv deletes, air pump delete, tbe, fp, greddy bov, spacers, injen cai, 3 port solenoid, a/o seperator.....

Would it misfire on WOT on stock plugs?

Idle and cruise logs are fine until WOT. Not running rich or lean. Just misfiring. Let me know if I should replace to stock ones with the 2667 plugs.

I just want my car to run right. Thanks for any input.
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Old 10-08-2012, 11:12 AM   #2
cnlor
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Any ideas?
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Old 10-08-2012, 12:12 PM   #3
Leafy
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I have no idea, but I bet posting your plug gap would help someone who knows help you. You did check the plug gap and/or re-gap them right?
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Old 10-08-2012, 01:28 PM   #4
cnlor
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Quote:
Originally Posted by Leafy
I have no idea, but I bet posting your plug gap would help someone who knows help you. You did check the plug gap and/or re-gap them right?
Thanks for replying. Honestly I did not check the gap yet because I couldnt find my gap tool.
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Old 10-08-2012, 04:36 PM   #5
EdgeAutosport.com
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Check your gap. That is probably the issue. Are the plugs the only thing you changed between the car beginning to miss fire and it not miss firing?
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Old 10-08-2012, 04:57 PM   #6
cnlor
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Quote:
Originally Posted by EdgeAutosport.com
Check your gap. That is probably the issue. Are the plugs the only thing you changed between the car beginning to miss fire and it not miss firing?
Well I had my whole long block built with forged internals. Maybe its misfiring from the new plugs... I'll just regap them. I dont think it would misfire from the oem plugs itself would it? I mean maybe I need to go one step colder in plugs
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Old 10-08-2012, 05:03 PM   #7
Leafy
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Going 1 step colder in plugs isnt going to help misfiring. It would help knock,if you were pushing the engine hard enough, but not fix misfiring.
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Old 10-08-2012, 06:17 PM   #8
cnlor
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Quote:
Originally Posted by Leafy
Going 1 step colder in plugs isnt going to help misfiring. It would help knock,if you were pushing the engine hard enough, but not fix misfiring.
Ok thanks
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Old 10-08-2012, 06:26 PM   #9
theSlothy1
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I was getting spark blow out yesterday under boost on my plugs (dom2.5xtr), checked gap and it was at 0.030, reset them to 0.026 and no more blow out. Sounds like the same issue you'll find when you check yours.
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Old 10-08-2012, 10:59 PM   #10
cnlor
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Quote:
Originally Posted by theSlothy1
I was getting spark blow out yesterday under boost on my plugs (dom2.5xtr), checked gap and it was at 0.030, reset them to 0.026 and no more blow out. Sounds like the same issue you'll find when you check yours.
Hey thanks! Will definetly close the gap tighter
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