does anybody ever see there wideband do crazy things sometimes? everyday mine will go dead lean while crusing to work then might go 12.8 before going back to normal 14.4 14.6 Maby my gauge is getting ready to crap out?

 

My AEM is kinda a pain, but after alot of internet research, I ran a ground wire directly to the battery and connected directly to the gauge and it seemed to help... As soon as I can afford it I am going to get different one...

 

Do you notice this occurs after going into boost? Mine does the same thing oncein a while, trims go nuts and then settle down. We have a similar setup, 2bar? MAF?

 

Are you sure what your seeing isn't DFCO? Is it happening while coasting at speed with no throttle?(High Vacuum ) Under these conditions your PCM Will cut all fuel to the injectors and your Meter will Peg lean, Like 17+ until you give another throttle input. Does that seem like what your seeing?

 

No its not the DFCO this will occur at a steady speed, seems liike it does it once
right after i start driving in the morning. It will do it once then its fine. I am still using a maf. Thanks for all suggestions

 

mine did this just b4 it shut the bed .check out the plx stackable 1s .thats the 1 i got and its an awesome setup,because u can stack em and add more o2s

 

Damn so the AEMs are no good?... I just bought one

 

no, when the sensor fails it will tend to read lean, and stay lean, not flip flop.

 

Oh I see... is it changealbe or are you SOL? lol

 

The sensors are changeable, as a matter of fact I have an extra one just in case. Another thing I noticed with mine is it would read a less than what the scanner was showing... Usually .2 less, it was frustrating getting it working correctly, but after reading on EFI and HPT forums, alot of guys fixed it by running a ground into the Scanning cable and a Ground connected to the battery. Mine seems to be working now...