AEM Wideband sensor replacement

[Kendog 170]

Hi All,
My AEM wideband O2 sensor has **** the bed. I first have to dig out my paperwork to see if it uses the 4.2(Earlier) or 4.9 sensor. My question is AEM want over $100 for their sensor. They show them on Ebay for around $38 free shipping. Just curious if anyone has been down this road and how did things work out.
Thanks

 

[Kendog 170]

Well I found a ground came off my Gauge. But the issue I was having before and now that is it reads 14.6 most all the time sometime 14.3 . It's a 4.9 sensor. Is there a way to reset the system? I only monitor O2 for Carb tuning.

 

[dusted]

I have the same AEM wideband and mine uses the 4.9 sensor. Mine was stuck at 14.7 and my sensor was bad. I bought replacement from amazon. Just bought a sensor, it was $38 I believe. There are some good videos on how to check it before you declare it bad. The new sensor cured my issue and it has been working so far, 2 months or so.