1999 BMW 5 Series Logo
Posted on Feb 11, 2011

Hi I have a 2001 BMW 520i. It wont start. Stopped whilst driving felt like I had run out of fuel. I have had fuel pump changed fuel filter changed spark plugs coil leads. Pressure tested and fuel is there at correct PSI. NO CODES on the fault reader. Crank shaft sensor has also been ruled out as there is spark. any ideas.....could it be the air flow meter??

1 Answer

A

Anonymous

Never rule out sensors, based on the fact they sometimes
work or you have spark

You need an oscilloscope and look for milli second
misses and spikes

Use the scope on everything,fuel pump etc

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