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BMW 3-Series (E90 E92) Forum
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Spark plugs
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| 02-26-2012, 07:20 PM | #1 |
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Spark plugs
How often are you guys needing to replace spark plugs or recommend replacing spark plugs when running procede, down pipes and intercooler?
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| 02-26-2012, 11:14 PM | #5 |
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Colonel
 
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Everyone makes up their own interval lol.
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| 02-27-2012, 10:24 AM | #6 | |
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| 02-27-2012, 10:29 AM | #7 |
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With it being a 3 prong plug I didn't know about the gap. But my car was feeling a little off and I've put like 5k hard driven miles with those mods. Maybe it's all I'm my head
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| 02-27-2012, 10:29 AM | #8 |
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I6 + TT = FTW
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wtf, everything said here sounds way too early. I have been on my original plugs for 42k miles, half of those with JB4. I plan on changing them at 50k, then at 100k (unless they start causing issues and give me reason to change earlier).
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| 02-27-2012, 10:30 AM | #9 |
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Major General
 
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when you start missfire
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| 02-27-2012, 11:04 AM | #10 | |
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Quote:
I also change my oil at 5K miles and just check the plugs at that time as well. If one or two look bad...I change them. Just keep few extra in the garage. |
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| 02-27-2012, 04:54 PM | #11 |
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I agree it's way early, my questioning was because when I first installed my procede it kept blowing the spark out due to it needing plugs and had never been changed at 75,000 miles.
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| 02-27-2012, 05:05 PM | #12 |
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Dumb question but a standard spark plug socket will not work on these right?
That was a dumb question lol... found the answer  Last edited by 2Times; 02-27-2012 at 05:28 PM.. |
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| 02-27-2012, 06:04 PM | #14 | |
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*BluRp*
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Quote:
only 335i needs this... others u can use standard
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| 02-27-2012, 06:21 PM | #15 |
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Just replaced mine this past weekend.
Starting misfiring with COBB 2+ Sport with aggressive driving. Really stunk. Threw Cyl1 misfire and fuel pump probably codes. Car runs perfectly well now except some vibration at idle - may need to reset adaptations. No more codes. Had 30k on my car 15k with a tune. 2 plugs looked terrible - the rest not so bad ... EXCEPT when compared to a new plug, there are no more sharp edges at the end of each spark gap - I guess this is what gets eaten away and the plugs don't work so well. Not sure when to replace again but likely will do it when I start misfiring again or 15-25k - whichever comes first |
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