I have a 91 318i, and have been really enjoying it. Yesterday while in the fastlane of the 5 freeway (speed around 30 or so, in traffic) my lights come on and it dies. I get to the side of the road and try to start it again, nothing, cranks with no sign of wanting to run. After about 30 minutes it starts, and i try to get closer to my home. Once again it dies after going about 3 or almost or 4 miles, and never started again. My friend sprayed some starting fluid in the intake and it ran for 4 seconds or so. I replaced the fuel filter the next day, and it ran for almost a minute, then died again. Does this sound like the fuel pump??? I dont know where all the components of my system are, but i have a multimeter, and would like to know how to find the problem on my own. I put my code reader to the car and came up with no codes. Could the fuel pump relay be my cause? and where is it? how to test it? I pulled the two fuel hoses off of the lines coming out of the manifold ( some fuel shot out under pressure from the lower of the 2 hoses), and cranked the engine, and saw no fuel being delivered. Thank you for any help in advance. All help is greatly appreciated.