Amen to this thread! Hijacking the veh. speed output from instrum. cluster fixed the limp mode of m52b28 for me too. When adding the wiring to the harness - don't turn desperate if you can't find the correct wire in X6000 where PIN15 of the Siemens ECU is spliced into. Despite all above info and e39 wiring diagrams my PIN15 was coming out of X6000 not in a brown/red wire, but in a yellow/green .5mm wire.
Had to disassemble the entire X6000 connector after two times splicing into incorrect wires and scratching the head when finding out that I have in fact connection to wrong pins. Hope this helps some other swappers out there.
Had to disassemble the entire X6000 connector after two times splicing into incorrect wires and scratching the head when finding out that I have in fact connection to wrong pins. Hope this helps some other swappers out there.
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