what guages does the wideban usually work with i know the aem one comes with one but is it possible to use the wideban o2 sensor from aem with a autometer a/f guage or would that be useless i'm going to be running a aem ems

 

The AEM wideband produces a standard 0-5V signal, so you can use it with anything that accepts 0-5V inputs.. It means Hondata and maybe 99% of other products. If your gauge works with 0->5V, bingo.

PS: the gauge just has to work as a volt meter.. if you want to plug your wideband on the EMS *and* the guauge at the same time, just splice the wires.