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PSA: Check yer gaps! I just replaced all my CoilPaks, because of a nagging missfire, no codes...

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Old 12-11-2006, 01:36 PM
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Default PSA: Check yer gaps! I just replaced all my CoilPaks, because of a nagging missfire, no codes...
I checked my plugs, and all were out of gap-range.
I just put these in this spring, Denso IR-22's, and I KNOW they were gapped to .032.
All were off to at least .035 or more.


Can't expalin it.
Car runs great now, strong and firm, no misses.
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Old 12-11-2006, 01:44 PM
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Default I had mine at .030 when I installed the first set...>>
and after 29K they were near .040. No misfires though.
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Old 12-11-2006, 01:52 PM
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Default hmmmm... what's the correct gap? .032? what about modded TTs? .030?
and aren't there some that run colder plugs with gaps to .028?

shed any light on this Jeff?
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Old 12-11-2006, 01:52 PM
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Default The gap will open up some over time...
I think the electrode will wear down from use, but I'm not sure what the tolerable range. But you are correct, they need to be checked!
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Old 12-11-2006, 01:59 PM
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.032 is the recommended gap for those plugs, colder running, wif mods, chip, BM ****, etc.
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Old 12-11-2006, 02:39 PM
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Default That's one benefit of running copper plugs >>>
The change interval is small enough that i've never had them open up on me. Otherwise I would check them every 10-15k miles.
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