Quote:
Originally Posted by BMW DIY Guy
Can you share any specifics on plugs, gap and possible coils? I just jumped to stage 2, 503rwp (yesterday) and am experiencing knock.
Simple 5min drive to the grocery store and could feel something different today. Pulled logs and pretty consistent knock from 1900 to 2500 rpk, though can show at higher rpm.
I can easily flash back to the stock CS or C map, but my immediate thought was plugs. I have 19k miles on and don't know if the plugs have been changed previously.
thank you for the insight and any thoughts
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If you are stuck with low octane fuel then Stage 2 tune could be pushing boost too high. You could run a few gallons of 100 octane in a tank and see what happens.