I have BMW 325i, i changed the engine and it does not want to start, fuel is not going to the engine?
Answers:
what year?there is loads.
i would guess that when the engine was pulled, maybe one of the conectors to the fuel pump was forgotten about and ripped off with the old engine. i would take a look around the engine bay or underneath and see if there are any loose wires that need to be connected somewhere. if worse comes to worse, run another wire to the fuel pump from the ignition. or if your wanting it done right or not on a budget, take it to a mechanic. also, fuel pumps can go bad if they are pumping but no fuel is actually traveling anywhere. the mechanics that put my new engine in left the key switch on while they pulled it. so i needed to charge my battery and a new fuel pump when they were done.
there is always a relay which you will find in the fuse box which will supply volts to the feul pump check it out it should give a click sound when the ignition is switched on next trace for any breaks on the wire to the feul pump
Most modern cars have an emergency fuel cut off switch, located in the engine bay, which operates in case of an accident, however it is an inertia switch so if you knock against it it will activate, all you do to switch it off is press the switch down again and your back in business, no guarantee that this is the fault but worth checking befoe you start spending money, for location of the switch see owners manual.
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