Misfires, symptoms, and false codes. V2, now with Seafoam!

[Spamby]

NGK iridium. Stock heat range. My gap was just a guess but so far I have no issues.

 

[Batmobile_Engage]

I have NGK Iridium 1step colder. I was just wondering what everyone recommends, especially tuners.

 

[HolyCrapItsFast]

^ That for boost levels over stock and/or running less than 93 octane gas. One step colder are not really recommended for use with e85 or meth unless you are boosting way beyond stock levels.

This is just my opinion. :tup:

 

[Alin]

Question. Does the spark plug gap change over time as it is used more and more or does the gap stay the same throughout the entire 20-30k miles?

 

[Spamby]

Yes. It can change due to erosion. In part, that's why plugs now come with platinum and iridium tips. These harder metals resist gap increase over the life of the plug due to wear.

 

[Alin]

All 4 old plugs were at 0.048.

 

[Spamby]

No bueno

 

[Alin]

Almost warm idle. One more min. Car had some misfire at cold start with relearning in session due to battery pulled. Logging it now. Seems to be good now.

 

[Alin]

[MENTION=9]HolyCrapItsFast[/MENTION] Emailed you the log! Let me know what you think...