OK PLEASE HELP ME IVE HAD THIS CAR 15YRS NEVER HAD PROBLEM LIKE THIS OK FIRST CAR DIED I GOT IT STARTED TO GET OFF THE ROAD AFTER CHECKING CAR I FOUND IT WAS GETTING FUEL I PULL SPARK PLUG AND CHECKED NO SPARK IVED ALREADY REPLACED COIL REPLACED CRANK POSITION SENSOR REPLACED RELAY MAIN AND FUEL PUMP HAD THE CAR START BUT DIE IMMEDIATELY SXO AFTER LOOKING ONLINE I WAS TOLD TO CHECK RELAY SOCKET FOR POWER RED WIRE SHOULD ALWAYS HAVE POWER AND RED /WHITE WIRE SHOULD HAVE POWER WHEN IGNITION ON BUT THERS NO POWER TO RED/WHITE WIRE THEREFORE NO SPARK AND NO FUEL PUMP AND I DID REPLACE ECM AND TESTED FOR POWER AS STATED IN BENTLY ITS GETTING POWER PLEASE HELP ME IM GOING CRAZY PLEASE HELP !!!!!!!!!!
did you ever figure your problem out, i have an 84 528e that sat for a little while and i have same problem, i am going to try main relay 87 87 not 87a (not sure if i messed up something using this 87a relay) and cleaned cap and rotor points and checked coil. i have some cracks in my engine wiring harness i need to take care of and i am getting fuel from pump and through regulator, plugs getting wet, maybe crank sensor? i want to drive my bmw, thanks tony