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somebody help please... m50tu

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    somebody help please... m50tu

    car is an 86 325es. 06/86 production date. m50tu from 94 325is.

    ok i know there are a million posts about wiring and crap. this isnt about my adaptor or the regular talked about issues. im posting up to try and figure out if anyone can back up my thoughts on what i think my issue is.

    engine turns over but i get no fuel. i have continuity from adaptor to relay to fuse to pcm. power at the relay but nothing. when i ground the BROWN/GREEN wire going into the pump relay it kicks the pump on. so in therory, that would make my pcm bad, due to the fact that the relay should be grounded through the pcm correct?! i could rig it to power with ignition and run a fuse inline but id rather fix it the correct way. is there a way to test the pcm?

    id really appreciate some help! thank you in advance to anyone willing to point me in the right direction.
    1986 325es- s50 swapped SOLD
    1990 535i 5spd euro SOLD
    1989 535i 5spd CURRENT
    2004 Mini Cooper S- the rotating assembly is still stock...
    2001 lifted jeep for bad weather

    #2
    You have spark? The ECU only fires the fuel pump when it wants to. If the Crank sensor is messed up or a number of other things it wont fire the fuel pump or spark.

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