1991 Mercedes 190E Runs Rich

[itsabattle]

1991 Mecedes Benze,190E 2.6 Idle poor, Sluggish acceleration, black smoke need help

[Oracle12345]

Pull your spark plugs and see what color they are.

I would check for vacuum leaks. put some techron in your tank and clean out the sediments in your tank. Your fuel filter could be clogged.

Your lambda may need adjusting which requires a special tool.