I have a 2004 Dodge Ram QC Hemi with a CAI. I recently ordered a Cyberdyne Air/Fuel Gauge from Jegs. I have installed the gauge as directed by the instructions that came with the gauge. The only reading that I can get out of the gauge is full rich. I get this reading even when the truck is not running. I have checked the Service manual and pulled the wiring schematic and connected to the signal wire like instructed. Wondering if any one has installed an Air/Fuel gauge on a 04 Hemi Ram and what did you connect it to.


Thanks

 

dodges o2 sensor cannot be used with any a/f gauge, you have to run a seperate o2 sensor inorder for it to work... just go to a parts store, pick up a single wire o2 sensor and have you local exhaust shop weld it in for you... the exhaust shop should have bungs for it also so there is no need to buy bungs.

that isexactly what i did for mine.

 

yep hes right. the 02 sensors from dodge wont give you a reading on aftermarket gauges. gotta buy another one

 

Aftermarket gauges are based on 1volt sensor signals. Ours are 5volts.

 

Thanks Guys. I have been racking my brain trying to figure out why this thing would not work. I guess now I know. Thanks for the help.

 

Actually autometer makes a kit for their gauge, forgot the part # I have it written down somewere dunno if it will work with anything else but autometer.