My CEL light was on in my 97 C280, I checked the codes and got a P0170 = Fuel Trim Bank 1, cleared the codes and installed the new AMM. I can see differences in acceleration and shifting but when I really stepped on it I got a couple of "pops" after the 3rd time. CEL light came back on and engine was running rough. After turning car off for a while roghness went away but still get the "pops" when jumping on it. Could that be because the trim was on the high side and if so will it correct itself after a few cycles?

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1997 C280 Sport