Hello everyone and good day. I recently registered on this forum because of the mercedes-savvy people on here. I hope you can help me with my current problem....
Well it started when i swapped the engine in my 1985 380sel and swapped in a 1987 420 engine. The engine was known to be good. I swapped the injection from the 380 and put it on the 420 including the fuel distributor and all the sensors. The car has spark and all. But it will not start. It is flooding itself in 3 or 4 cranks of the engine. I can crank it with the fuel relay in, then take the fuel relay off and it will start after the fourth crank but it will only run for about 4 seconds. I am very new to the cis injection on these cars. I know it is something simple. I know the engine was good. When you crank the engine, the pump is on THE WHOLE TIME you are cranking over. I checked the fuel return line and its fine. Also, to verify it is flooding out i toook all the spark plugs out and cranked it over. A whole bunch of fuel is coming out of the cylinders. It is like its WOT or something. I dunno but it is WAY more than it should be. What would cause this???? Please help me i would greatly appreciate it.
Patrick