crwdns2936637:0crwdne2936637:0 crwdns2853008:0crwdne2853008:0 crwdns2918746:0crwdne2918746:0

crwdns2944351:0crwdnd2944351:02010 Mazda 5 How to Troubleshoot Oxygen Sensorcrwdnd2944351:0crwdne2944351:0

crwdns2933797:0LarsWHcrwdnd2933797:0crwdne2933797:0

crwdns2936043:0crwdne2936043:0 crwdns2933505:0crwdne2933505:0 LarsWH

crwdns2933769:0crwdne2933769:0
crwdns2933771:0crwdne2933771:0
crwdns2933801:0crwdne2933801:0
Conclusion
Leasson learned: probe the oxygen sensor pins if you experience problems:
* Pin 1-2 is the pre-heating element, and should show around 5-6 Ohm (meaning that the pre-heating must be using around 60W)
* All other combinations of pins should show a capacitance around 50 pF
There is a clear difference in the meassurements when comparing the defect part and the new replacement part.
Here are some good resources on Mazda and oxygen sensors, but remember: meassure the pins and look for signs of a defect device before you start taking tings apart
[link|https://www.youtube.com/watch?v=jFFR4307AIQ|https://www.youtube.com/watch?v=jFFR4307AIQ]
[link|https://www.youtube.com/watch?v=XC5HWd7Pin4|https://www.youtube.com/watch?v=XC5HWd7Pin4]
[link|https://www.youtube.com/watch?v=fiOxH14JPEE|https://www.youtube.com/watch?v=fiOxH14JPEE]
[link|https://www.700r4transmissionhq.com/p0138-mazda-3|https://www.700r4transmissionhq.com/p0138-mazda-3]