I'm not sure if I properly addressed the introduction process of being a new member, so Happy New Years everyone! I currently own a 1989 Mercedes-Benz 300e with around 161,000 mi. I visited this site quite frequently since my ownership a little over 2 years ago, and since have became a member. There are some very informative, and a great forms here!
This brings me a question I have about the vehicle itself! Since ownership, it appeared that the car had regular maintenance up until about 120,000 mi. via the service manual. However, the car needed work and there is a lot that has been done to this point. (I will list key things!) I have read many forms, but thus far I have not been able to track down the problem!
A short time ago, I had started the car and it ran for about 5-10 mins before what seemed like a misfire, then stuttered and died. Now at this point, the car had been low on gas, so I figured that could be the problem - added a few gallons of gas and still no start. So far I have replaced, plugs, wires, distributor, cap and rotor, coil, EZL Ignition Module, crankshaft position sensor (on transmission bell housing), Mass air flow unit, including fuel distributor, both fuel pumps, fuel filter, the accumulator, pressure regulator, all fuel lines, rubber and stainless, fuel pump relay, OVP relay, also swapped ECM/ ECU, replaced all fuses including strip fuse (if it has any significance) New voltage regulator and battery, EHA and micro switch. I've even tried to pressurize the system via FPR contacts, even leaving them bridged while trying to crank the car. I'm running out of ideas! Please help!
I have verified spark, it appears that I have fuel getting the fuel distributor, but I question if its reaching the injectors? If I pour gas into the throttle body, it will run off the gas then ultimately die. When it does run, its smooth as ever - I have had it run on one occasion where it seemed as if maybe half of the cylinders were operating? RPM's at that point very low 2000 maybe 3000? Any ideas? Thanks greatly in advance!