Hey all,
Hoping a 7 guru here can help me with a question,
Which wire going to the boost pressure sensor is the ground?
Wires are:
White w red stripe
Black w red stripe
Red w black stripe
Red w blue
I believe its the black one just wanna make sure.
thanks in advance,
Greg

 

i can look it up in the wiring diagram if you want.
you are talking about between the pressure sensor and stock ECU? S4 or S5?

 

s5 please and thanks

 

I just checked the Haynes and for S5 few of these colours are mentioned. Ground is the black wire.

 

FSM has the following four wires for the pressure sensor:

B/W
B
BR/R
BR/W

edit: oops, just realized that i was looking at S4 wiring diagrams. unfortunately i do not have a Series 5 wiring diagram on my computer.

 

Your right my mistake on colors. Tired as hell
So which accordingto your book?
Thanks Aaron!
Greg