Hi,
I am also having problems with my 93 300e, I left the car with wife and she went a couple places and told me first it took her 10 min to start, then that evening I had to go get her, car start after that day one time I took to fuel station and after fueling it did not start again, one day later, I went there it start again took it to our place and did not start again, I read the forum and so far I change fuel pump relay, and tonight crank position sensor and still cranks but not starts, I ordered cam position sensor, and read here about OVP relay. I will buy that too but I really need a code reader for this car, that 16 pin one, I also bought cd's they show the terminal but not tell any thing about how to read the codes with it, any bodies help would be appreciated. Thanks.