I have the AEM EUGO Wideband Air/Fuel Gauge. I have a JDM ITR motor in my EJ6. My o2 sensor for the motor harness is plugged into the headers and the wideband AEM o2 sensor is plugged into the CAT. The plug for this thing is brolic and i cant see how i could have possibly plugged it in wrong. When i start the car it counts down and reads whichever setting its on and goes right to 14.8 it doesnt move from there no matter what setting its on. P00-P04. (P01 reads 1.01 i believe)

It sometimes quickly goes to 14.7 then back to 14.8 but thats it. At idle no movement, while driving no movement, while in vtec no movement...it just stays at 14.8

if anyone has any ideas, please help me out!

Thanks


Dc2

 

Pretty sure you should be running the eugo Pre-cat only since the catylitic converter would be doing its job and change the amount of oxygen and hydrocarbons in the exhaust. Im not 100% on that tho. you might want to check with AEM.
Also, you are waiting for your engine to warm up right?? it will read rich until the engine is in closed loop (warm)

 

Using the wideband in the cat defeats the purpose of the wideband, I would definately move it.

 

wow!? so having the AEM sensor in the cat is why its thrown off? When i turn it on it goes right to 14.8 and stays there the whole time. It DOES NOT lean or rich out...it doesnt even move. It was at 14.8 when i was driving this morning to work and then went down to 14.7 for a little bit. But it DOES NOT move other than that. Will it be bad to have my o2 sensor from the motor harness in the cat? if it reads the air/fuel in the cat, how will it adjust the computer? I will have it dyno tuned in a couple of weeks anyway, so then it will have the optimum ratio.

- DOES NOT GO ALL THE WAY RICH/LEAN
- TURNS ON & STAYS AT 14.8

 

I'm pretty sure you have to move the wideband before the cat.