1995 BMW 325i Repair Question
1995 BMW 325i wont start
Oh, I was told by the previous owner that the fuel pump has already been replaced once.
Asked by shutterbuggAnswer
Go to this link: http://www.2carpros.com/articles/car-cranks-but-wont-start
Crank no start can be a dead fuel pump. Try spraying some brake clean or some gasoline into the throttle body, if it fires, it is probably the pump. The light bulbs all need to be inspected and if any are the brass base type, they need to be changed to the silver base ones like BMW sells, the brass ones will turn that light on. Also check all the connections for heat damage or corrosion.
I read on a BMW forum that it could be a crank position sensor. Is there any kind of bench test to tell if that has gone bad? I say this because the check engine light on the dash doesn't go away while cranking, which I am told means its not receiving a signal.
The crank sensor on that model is a passive diffusion type sensor that generates an alternating current voltage, it should be possible to see it generate voltage on a digital multi meter. Did you try my previous suggestion?
I'll check all the bulbs per your suggestion. As for the spraying into the throttle body, my dad and I tried that once before and it almost fired up. Nothing solid to go on tho.
Is there a way to power the fuel pump separately from the car's power to see if it is indeed the pump or if it a power supply issue (caused by bad crank position sensor)? I can't afford to spend almost 300 on a pump to replace one that might still be good.
Power the violet/green stripe wire at the connector, that will run the pump. If it is the pump, let me know, I know where a much cheaper pump can be obtained.