Ive had my m52 swap running for month now. I would only run it for 20 sec at a time on jackstands because my cooling system wasn't hooked up. I installed the radiator etc and had the car running for about a minute and it just died. I can jump pins 37 and 80 and get the fuel pump (walboro 255) to work. Power is getting to fuse 11 when cranking. The engine is getting spark as well i can get it to run on starting fluid. Ive changed the main relay. Im charging the battery now it was at 12.1 volts. Not sure what else to check any input would be appreciated.
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One thing i have noticed is i cant hear the pump prime when ignition is turned on before cranking. My 91 m42 318is has an audible prime before cranking/starting. I only hear the fuel pump for a few seconds after cranking the engine over and not starting. -
im having the same issue. runs great when you bump it with starting fluid but the pump doesnt prime@Pepperede30Comment
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Did you ever resolve this issue?Comment
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