I had my stock plugs replaced with a set of NGK (1422) ILKR8E6 and noticed the originals looked pretty dirty with carbon buildup. There is only 9K on them, perhaps this is normal or the stock ones were crap. Also, I used a few brands of octane booster which could be the culprit. Any thought anyone has, please share.
Carbon build up on stock plugs
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Sure does look dirty. Are you running a tune device that would benefit from 93+ octane? If not why use it? Probably placebo effect at best.
Yes, I have a tuned device GAN. Also I have intake and exhaust mods as well. My tune will handle all the octane I can throw at it
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35 Posts
I would say you tuning device is running to rich.
https://www.championautoparts.com/P...-and-maintenance/how-to-read-spark-plugs.html
http://www.ngk-sparkplugs.jp/english/techinfo/troubleshooting/03/index.html
https://www.championautoparts.com/P...-and-maintenance/how-to-read-spark-plugs.html
http://www.ngk-sparkplugs.jp/english/techinfo/troubleshooting/03/index.html
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Yes, I have a tuned device GAN. Also I have intake and exhaust mods as well. My tune will handle all the octane I can throw at it
Are those the OEM plugs? If so, you need to swap them. Any ECU tunes that are offered on our cars, also state the need for colder plugs. HKS M40XL/M45XL
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That GAN box is causing your car to run super rich. This, combined with low-rev high boost pulls and this is what you get. I’d actually try running a hotter plug. Not the other way around first. Also. Maybe cut the octane booster out of the diet. Lol.Yes, I have a tuned device GAN. Also I have intake and exhaust mods as well. My tune will handle all the octane I can throw at it
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