1987 Mercedes-Benz 260E (SOLD) ;;; 1995 Mercedes-Benz E320
So i started asking about this problem in another thread, but i decided to re-post it with a more relevant title. Basically the problem i was having was a no start due to lack of fuel. I turned the key, went out and pulled the brand new fuel pump relay, and plugged it back in. The fuel pumps didnt turn on, however i could feel the relay click shut. So instead of trying to diagnose it, i ran a hotwire and ground straight from the battery through a toggle switch and too the pumps. They were however both seized up, but after some playing around i managed to free them up. I now have gas to the fuel distributor and to the injectors, but after pulling an injector and turning the pumps on i realized, that fuel isnt passing through the injectors. My question is what should the fuel pressure be going into the distributor? And right before the injectors? I plan on testing that tomorrow. I wanna know if you think the pressure is too low for the fuel to pass thriugh the injectors, or if maybe theyre clogged? They seem to be purely mechanical, so my question is shouldnt they always be open? Any help would go a long way. If i pull the injector off and turn on the pump the fuel comes out at a steady pace but not very pressurized, if i hold my thumb over tge line the pressure builds up quite a bit. Any way to test injectors?