Im pretty sure on this one but i can't find a solid answer. with the greddy turbo being internally wastegated i still hook the gauge vacuum hose to the intake manifold vacuum source right? can any-body lead me in the direction as to which wire is for the correct o2 sensor when installing an air/fuel ratio gauge? im about to purchase a helms manual i think,but can anybody help still until then?

thanks

 

user the big port for your Master Cylinder that comes off your Intake Manifold as your main vacume feed.

as far as u'r o2 sensor wiring.. wire that bish into your harness near your ECU.. use the resourse sticky on the forum to locate the pin out & tap the appropriate wire