Another A/F Question

[wibblersnatch]

Ok, I just installed a Autometer A/F Gauge and I'm positive I hooked it up right. But the only part that lights up is the farthest led down on the rich side. I do have a check engine light on and I've heard that they run rich whenever it's on. Do you think that could be the problem? Thanks in advance.

 

[wastefuldreamer]

Did you hook up the one wire to the ECU? I had the same problem installing on my friends eclipse. The metal part of the wire from the a/f wasn't touching the metal part of the wire going to the ECU. Maybe that can be your problem.