2002 Chevy Avalanche oxygen sensor

may i ask what trouble code you are getting and what the problem is your having

I'm trying to hook a electronic fuel injector enhancer (efie) to the signal wire on the oxygen sensor.

do you have any information on the electronic fuel injector enhancer

the truck O2 sensor has; ppl to HO2s HI, tan to HO2S LO, pink to fuse, black to grnd. Dual digital efie from 3rdbrakeflasher has; grnd, 12v, blue & brn for 1 signal wire, white & green for 2nd signal wire. Cut O2 signal wire & connect to efie, blue going to ECU and brn to O2 sensor. Which wire am I suppose to use the purple (HI) or the tan (LO) signal wires?

who makes the enhancer? Let me try to look up the info

3rdbrakeflasher.com makes the efie, but the question is which signal wire do I hook the efie to the oxygen sensor.

I never messed with one of them before, I would suggest contacting them for more information. let me know what they say