Yesterday my tuner was tuning start up and drivability before going onto the Dyno and we ran into two problems. First the ignition timing keeps jumping after the timing was timed correctly, second the built in Uego wideband doesnt read past 15 AFR. I just bought this EMS recently, brand new in the box...could this be a defective unit? or is there a updated firmware needed to make things work properly? I forgot to add that I also installed the AEM 5 bar and Aem AIT sensors. Please help me out thanks

MODS
AEM 1320U EMS
850 cc clinics
Map Downpipe with external dump
GSC S1 cams
Megan Manifold
3" inch pipe cat delete
HKS Titanium exhaust
ETS 3.5 intercooler
Muse upper and lower I/C piping
Stock Evo IX turbo
Ams mbc

 

PROBLEM SOLVED! It ended up being a bad UEGO wide band and the instructions to wire up the AEM map sensor was incorrect.