MAP sensor wiring

map sensor wiring question, according to my sources the 3 wires to the map sensor are for earth, 5v live and 5v signal wires. i know which is which for the pins on my new sensor, but its off a cossie, so need to know which is which on the clio wiring loom?

cossie details:

Pin
1..........+5Vdc
2..........Earth
3..........Signal

tried the haynes manual, but it doesnt actually say what each wire is, just that they all eventually trace back to the ecu, or seem to to me, never been much good with the haynes wiring guides :oops:

anyone any ideas?!!

cheers

Ben

http://hhscott.com/93tmv/images/3BAR.jpg


ground = A
signal =B
+5v = c

:P :lol:

future ref :)