I can't start my 1987 190E 2,3 (posted earlier).
Ignition and fuel pressure seems OK (strong spark and specified flow through pressure regulator), Voltage inputs to ECU are also OK.
Pressure at cold start valve output of fuel distributor seems OK, but the 4 injector outputs have very little pressure, i.e. fuel flows proportional to the posistion of the air mass sensor (from none to some milliliters per second). Applying 20 mA current through the EHA hans no (or at least not a noticable) influence on the flow rate.
Is it normal, that fuel to injectors are not under preasure, and that EHA current has such little effect?
Any suggestions?