The car just doesn't start
May 6, 2012 at 5:49 PM
I have a bmw 525I it won't start i have replaced relay to fuel pump but still nothing. any other suggestions
1995 BMW 525I
HERNANDEZ7769
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how do you know it is the fuel pump system?? did you have it diaged or is it a guess
Roy
Roy
May 6, 2012 at 5:56 PM
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Have a helper get underneath and listen to the fuel pump while you turn key on-is it humming? If so -check the fuel pressure and injector pulses
May 6, 2012 at 6:00 PM
I have checked the fuel pump and it has the proper amount of pressure. could it be the main relay or something electrical
May 6, 2012 at 6:09 PM
Are the injectors opening and closing? If so -look for ignition spark
May 6, 2012 at 6:22 PM
check for compression first. you need to start at basics. then go to speark, check for spark at the plugs.
Roy
Roy
May 6, 2012 at 6:23 PM
The engine is not getting any fuel
May 6, 2012 at 6:24 PM
You said the fuel pressure is good-again are the injectors pulsing meaning being snchronized by the computer providing fuel into the cylinders
May 6, 2012 at 6:29 PM
We had pressure in the fuel pump yesterday and now it isn't registering anything.
May 6, 2012 at 6:44 PM
Check/Test fuse no.18 15amp, fuel pump relay and fuel pump relay control circuit of the computer
May 6, 2012 at 6:49 PM