where do I hook up the PURPLE wire that goes from the sensor for the air/fuel ratio gauge on a 2001 V6 taco???????There's 3 wires: red(ignition) and black(ground) and then purple(to sensor) WHERE in wire loom???
real simple. look under your truck right in front of the cat convert, the o2 sensor is right there. i looks like a spark plug. tap into the blue wire, hook up power, ground and the light for the gauge. done!!!!! i tapped into the volt meter for all the other hook ups.