Had my AEM UEGO wideband A/F gauge installed couple weeks ago and it reads between 15.0-15.7 and every 5 seconds will go "--" and run throught he color scheme. Any ideas what is up with it?

 

Mine will run "---" when I were in really slow speed, but not every 5 second. How old is the o2 sensor with the gauge? Cause if the sensor's failure it will act funny.

 

the whole gauge/sensor is brand new, what does yours read? Just weird mine is reading 15.X unless I don't understand my A/F

 

why such a high a/f? isnt 14.6-14.8 ideal under normal conditions like cruising/idle.

 

Yeah i'm trying to figure out what is wrong with it, I saw a picture someone posted of their car and saw their AEM UEGO was reading 15.5 is this standard for this gauge or is something wrong?

 

you probably have a bad sensor, or you are experiencing an exhaust leak

 

-- in red is crazy full lean, or off throttle (decel).

You say it is 15-15.7, this is at idle, cruise, what? What does it read at WOT?

Mine reads around 14.5-14.9 at idle, and high 10/low 11 at WOT. Works fine so far.

 

it stays in the 15's in WOT think I have a bad sensor or exhaust leak as previous stated, pretty frustrated

 

i havn't experienced what you are getting, but i run one aem per bank. one new one about 10,000 miles on it. they are about 0.5- 1.0 off from eachother it seems. need to datalog to make sure, hard to look back and forth fast enough. looks like i'm trying to watch a couple crack heads playing tennis!!

 

Yeah, a UEGO would not be my choice if I were to do it again...

If you are seeing 15 at WOT and your engine hasn't blown up yet, the problem is almost certainly with the sensor or a leak pre-sensor.

 

yeah i'll try a new sensor and if that is a no go i'll throughly check exhaust, if not i'll smash the gauge

 

LOL, and go with something that has a "calibrate" function.

 

yeah i'm guessing inovate?? anyone wanna chime in

 

either your sensor is bad or your a/fr is runnig that lean if nothign is wrong with the sensor or gage then i d be looking at the tune i hope it is just the sensor

 

sounds like another solid aam tune

 

Which bank are you running it off of..drivers side or passengers side

 

I read from 12-15. Do you have cat? Your o2 is before or after cat?

 

Bryce mine at idle will read anywere from 14.5-15.6 but on boost it will read from 11.2-11.8 and i asked Dave at FT and he said thats pretty much normal for this gauge.Its not the best one out there by far but it works ..............some what good.

 

I was in car during some tuning the A/F were really good, don't think i've looked at the gauge while in boost kinda hard i'll go over everything again when I pick it up again.

Edit: Locked till I get the car back and can grab a video of it in motion