I have a 1994 318is, I put the intake all back together. I pulled the barrel igntion out went to start just cranked. I spayed starter fluid in the intake, then went to start went jumped up to 1500rpm then went to cranking. I checked my fuel pump, bad fuel pump changed it. Went to start and just cranked. no fuel was pumping at all I swaped the fuel pump relay with my other bmw 318 ( I also pulled the fuel pump off it too) the car runs fine, but nothing changed the car just kept cranking then I put the relay and pump back other car and it fired right up. I dont really know where to start in fixing the problem but I need to soon, other car is on last leg.