misfire on 1992 BMW 750iL

low idle, misfires, burns rich, all spark plugs wet with fuel

Asked by for the 1992 BMW 750iL
review when last tuned. it may be due.
rec. fuel system clean. ethanol treatment to 1 tank premium. ethanol blend in fuel causes build up in fuel system(possibly fouling injectors), combustion chambers. exhaust and causes increased wear to spark plugs.
get diagnostic run to find any other issues u need to be aware of.