I've been searching around this forum and found that the best place to take the power for a wideband is from the fuse panel. My question is: Why not take it off the ECU power and ground from the 'A' connector. This is what I did but I fear that its messing with my wideband readings.
It seems the richer the the car gets the more inaccurate the datalog (via hondata) is. At idle the gauge and hondata are only .2 afr off (which I figured was acceptable). I'm using a -.75 voltage offset and 0.00 volts=10.0 afr and 4.25 volts=18.5 afr per AEM's instructions. However the display on the gauge almost always reads lower than the datalog. Any idea why this is happening or any insight into the issue would be great.