1993 BMW 318 will not start

RAW69

MEMBER
1993 BMW 318
4 CYL
2WD
MANUAL
110,000 MILES

I have done lots of engine repair work on car everything was fine and drove fine then some months down the line I was driving and lost all power and engine cut out. Got towed home and cant figure out why it wont start. Timing, fuel, spark, sensors, h20 pump, fuel pump, fuel filter, green sports air filter, co2 sensor, thermostat, radiator, h2o & engine temp sensor all new and working/fitted correctly. Can you give me your advise. Thanks

1 Reply

RASMATAZ

MECHANIC
75,992 POSTS

Do you have a check engine light On prior to this problem?

Something has to give here

If the engine's condition is in tip top shape-do below to determine if its fuel or spark problem that's if its cranking over and refuses to start

Get a carb cleaner and spray into the carb or the throttle body on an EFI. Did it start and die? If not disconnect a sparkplug wire or 2 and ground it to the engine -have helper crank engine over-do you have a snapping blue spark? If so-you have a fuel problem, check the fuel pressure to rule out the fuel pump/pressure regulator and listen to the injector/s are they pulsing or hook up a noid light. No snapping blue spark continue to troubleshoot the ignition system-power input to the coil/coil, distributor pick-up coil, ignition control module, cam and crank sensors-

If both fuel and spark is present-check the valve and ignition timing, this will lead you to problems with compression and valves opening and closing at the wrong time