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Message: <blockquote data-quote="MAXX RS4" data-source="post: 9866" data-attributes="member: 8245">So I pulled out a spark plug to check the gap and I found that one side of the plug was all white and had chunks of stuff on it. This means there there's a lean mixture or too much heat, correct? I know that my motor isn't running hot, so it has to be lean..?All I have is a midpipe, catback, and an fipk2. This wouldnt lean it out too much, would it?My pinging situation has gotten worse too. It'll ping at around 1800 rpm if in a steep gear and some load is put on it. I havn't gotten to change out hte fuel filter yet so I'm hoping that's it. Anything else that it could be?</blockquote>