Hi,
I'm new here. Have '88 190E that will not run w/200K miles.
Fuel filter has been replaced. Exhaust system has been
replaced; spark plugs, and battery. It will only
run a short time when gas is poured in through the top
of the air cleaner assy, into what looks like a throddle
body and gas pedal is pumped rapidly. It will run until
poured in gas is depleted at 3,000 to 4,000 rpm only and
very rough. Plugs are not wet after doing this 3 times.

Please help with your suggestions.