I have an AEM uego wideband with a p28 ecu running hondata s300,Everything is hooked up right Wideband is on its own 10amp fuse,grounded to the thermostat housing,and connected to ECU via D10 and in ECU resistors r136 and r138 have been removed but when I try to data log with my wideband (closed loop Wideband)The highest AFR it gets in Smanager is 12.8 and it just stays there while the gauge goes up until it caps at --- but if i run it (closed loop stock sensor) the gauge works fine. So what am I missing? I kinda need to data log so I can tune it.

 

you should only be using open loop for tuning and datalogging.

if d10 wont work, use d14. just make sure the oem o2 sensor is unplugged anytime you have the wideband connected to d14

 

Does d14 allow high enough voltage? I thought that was the reason for running d10 and removing the resistors. Thanks for helping me out, its had me stumped for a while now.

 

d14 allows up to 3.7 volts. which on the aem scale works out to around 16.8 afr. anything above that is pretty useless anyway, so it really doesn't matter

 

Hell yeah, thanks man I'll give it a shot after work!