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2002 C320 w203 code p2071 & p2086
Hi, I need some advise to diagnose causes & parts needed to fix code p2071 & p2086. I have replaced all coils, wires, & plugs but still have rough idle problem. Fresh oil & filter change. Drives fine at speed. What is wrong,
2002 c320 base wagon. W203 Thanks in advance! David |
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