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RPM WIRING.

Posted: Thu Aug 27, 2015 11:10 am
by 8565
Hi all, i just completed my convert to M1.3 on my preface lift 325i.
on the instrumental wiring saying that need to cut the 2 wire from the ecu plug and connect to old c104. i tried to connected the to the ecu plug without cutting it and nothing happened when i start the engine. the RPM is not moving. did i need to cut the 2 wires, totally disconnect from the ecu? PLS HELP.