Tech help:

[HKS]

I'm trying to installed this Air/Fuel Ratio gauge for 88 Supra Turbo, and I had everything hookup but it didn't work. I'm not sure what causes. I double check on instruction.

Correct me if I'm wrong. On the o2 sensor it has three wires. Two wires are black and one is blue. Most of my friends says hook it up to the blue wire. Is that correct? If not, please let me know.

This gauge that I purchase brand new I'm not sure it suppose to come with the white wire or not. Seem to be in the instruction is suppose. But on the guage it doesn't come with it. So, I'm confused.

Any help, I apperiated. I know this thread is stupid, but please respect.

[Idealsupra]

umm what gauge is this... if its an autometer..and not a backlit version which MOST of them arent... it will have three wires one red, one black, and one purple.... red is power source black is ground purple is o2 sensor...about 4-5inches from the back of the ecu....