AEM Wideband sensor replacement

Discussion in 'Electrical and Ignition' started by Kendog 170, Nov 21, 2018.

  1. Kendog 170

    Kendog 170 Member

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    Hi All,
    My AEM wideband O2 sensor has shit 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
     
  2. Kendog 170

    Kendog 170 Member

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    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.
     
  3. dusted

    dusted FABO Gold Member FABO Gold Member

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    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.