Poor Idle
I have a 85 500SL that will not idle below 2000 rpm. I replaced the o2 sensor and then it would not crank. Disconnected the o2 sensor and it goes back to very rough idle below 2000 rpm. Runs great above that up to 100 mph. There was heavy carbon on the 02 sensor. Acts like it is flooding out at the low rpms. Any suggestions???
Ken
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