I've searched the forum and I can't find anyone with this problem. We are trying to install on my brother s4 turbo II. I've hooked up the autometer air/fuel gauge and it lights up but VERY dim. We've checked and rechecked all connections, tried new grounds and still dim. Only thing we can think of is it's the guage?!? ...any ideas??

 

Isn't one of the connections a dimmer for when you turn the headlights on? What wire's that connected to?

 

I've never seen a Autometer AFR gauge..... but my fingers found the AUTOMETER.COM web page http://hp.autometer.com/homepage/homepage.html and they have a technical area that has downloads for installs of their equipment, such as ... http://hp.autometer.com/instruction_...tions/837j.pdf

And, i didn't really look, but I bet there is a number you can call for advice on that site.

 

ya the tech section for the afr gauge is the same as the piece of paper that comes with it...and i already emailed them...guess we'll see what they say

 

have yout tried a new power suply. a way to test it is just to connect it to a battery and it should read that last rich bar and it should ight up all the way.

 

yiu may have tapped a 5v power supply instead of a 12v supply check the volgae you are getting from your source