O2 Sensor Test - How to check to see if your aftermarket O2 sensor is bad

Have an Air/Fuel Ratio Gauge and want to see if your O2 sensor has gone bad? This is a simple test to see if your sensor has gone bad or is still okay. Buy your AEM Wideband Replacement Sensor here: http://www.aemonly.com/electronics-ems-ecus-6/sensors-accessories-15/bosch-wi...

Category:

Autos & Vehicles

Tags:

• O2
• sensor
• test
• Air
• Fuel
• Ratio
• AEM
• UEGO
• autometer
• innovate
• oxygen
• tester

[rockinw401]

Would an sti o2 sensor add horses to my 2.5i?

[AEMonly]

No, but it will tell you if your tune is safe or not...

[218Minesnowta]

i have a 97 eagle talon and the a/f gauge is stuck on rich. so what does that mean?

[AEMonly]

@218Minesnowta Your sensor has most likely died :-(

[Jskrapper]

Great vid. When the sensor goes bad, does it typically read rich or lean? Probably neither, but I was just wondering if there was a more common failure. My car was away all winter and now the uego is reading very lean with no changes to the car after I brought it out. Egt's are still right on key so all signs point to the sensor.

[AEMonly]

@Jskrapper It can go either way, although our experience it usually fails to "rich".

[Philscbx]

What a Great RealTime Test.

Thanks

[BlackFreemasonsSuck]

@AEMonly I* just got a new EGR valve because the scanner was reading po401 causing my check engine light to stay on. A mechanic told me I needed a oxygen sencor, what do you think about that?

[nialljamesbuckley]

Great video, even greater last name

[thyaaawad]

i have a bad o2 sensor with this car i just bought but it has an air/fuel mixture and its all the way clockwise but the light is green, does that make any sense at all?