Spark plug corrosion

[bvalente]

So I had a p0307 go off yesterday and changed all the spark plugs to NGK IX Iridium. Upon removing the spark plugs, I noticed a couple of them had similar corrosion but were different than the others, any idea why?




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[ItHurtz]

http://ngksparkplugs.com/tech_suppor...qs/faqread.asp

[bvalente]

Awesome thank you


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[Fivefingerdeathpunch]

Kinda looks like that cylinder burns some oil. It's common for the DOD to use some oil.

[bvalente]

Kinda looks like that cylinder burns some oil. It's common for the DOD to use some oil.

Ya I was researching the GXP a lot before I bought it and new this was an issue, luckily my car doesn't burn that much right now. I threw a code for a cylinder 7 misfire and wanted to changed all of them because I am not sure how well taken care of it was before I got it. Now it gets the best of everything I put some NGK IX in it, and the difference is night and day. Just on the throttle response alone, it moves when you give it some gas. I also put some Fuel System cleaner in my tank when I refilled up so hopefully that'll help freshen everything up. It already has MSD wiring, K&N cold air intake, SLP cat-back exhaust system, transmission cooler, and just slapped some new rubber on her too. In love with this car

As far as the spark plug, it looks to me like a combo of just normal where it some of the oil burned, not much, but not the same as the others. It's not something I am worried about though.

[91parkave]

You're really going to want a tune done asap. Getting that dod crap turned off is a lifesaver for your car. Its also time to invest in oil catch cans .trust me when I tell you its a good investment. LS motors have the most ****ty pcv system to deal with.

[bvalente]

You're really going to want a tune done asap. Getting that dod crap turned off is a lifesaver for your car. Its also time to invest in oil catch cans .trust me when I tell you its a good investment. LS motors have the most ****ty pcv system to deal with.

I want to get a tune, I was looking at getting the Overkill one but was looking for recommendations. I am somewhat handy with cars, I can do most basic stuff myself, but I am not sure where to even access this chip to get the tune done.

[blueguy]

The "chip"?

We have a PCM.

It's in the factory air box. No chipping these cars.