Ok My 99 SLK230 (Auto Trans) with about 59,000 miles thew two codes BOTH are P0170 - Trim Mal Bank 1. I check the gas cap and it seems to be attached properly. Any ideas?

NP

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1998 C280 Sport - Member 744 Crew
1988 Toyota MR2-Kompressor(No. 3) 168K+ Miles
Prior MB Cars 1974 450SLC & 1985 190E 2.3

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