p71 wo`nt start

tryed new fuel pump,new crank sensor, ignition switch and 3 different CMUs still no check engine light on dash and fuel pump will not run. Not sure what next to check.

this might sound verry stupid but check all the grounds go on line and look up the wire harnes they do hide sum wires i had the same problem with my truck and found that the main ground to the computer was broke off from the battery its a 10gage wire if its broke reground it to the engin block I learned the hard way 3.000later hope this helps. if you need you can email me at... [email protected] and ill do my best to help you out

Thank you very much, I spend 3 weeks chasing wires, today I found a diode that was in bad shape (rusty) I cleaned it up and restalled it, it seem to fix my problem, my car sterted right up. alway seem to be the simple things that drive us crazy, Thanks again

glad to know that it waz an easy fix hope next problem is as ease as this one and cheaper to LOL

My BMW is X6!!
Last week , I changed my car into BMW X6 .:happyanim: I was very happy !! I want to know some advice to protect BMW. Can you give me some advice?


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