Recently install the wiring of my air/fuel gauge. This install is on a 93 prelude si, all three wires were, hopefully connected the right way. Black ground, Red power from source that turns it on, and Violet to one of the wires from the O2 sensor. When all the wires connect up, my gauge show and idles at lean *3 red l.e.d instead of bouncing back and fort between the mixture or when driving. Please advise on what could be wrong. ex: o2 sensor, wiring, or it's actual true reading from the gauge. thank you.

 

bad o2 sensor?

 

wouldn't it throw a code if your o2 sensor is out? (Check Engine)....

 

the purple wire gets connected to the white wire on the o2 and check yoru wire connections .

 

well, thanks. I think I have the purple wire connected to one of the black wires thats why it blinks constant on Lean mix. From what I remember, there is a white, green, and 2 black wires from the o2 sensor. So it must be the white?

 

yea purple goes to the white