NA6 Oxygen Sensor
NA6 Oxygen Sensor
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Description
Replacement single-wire oxygen sensor for 1990-93 stock computers. Plug-n-play installation.
If you've found that your car is running rich and the fuel economy has dropped, this is a likely culprit. The sensors are long lived, but the failure is a slow one so you might not notice the problem immediately.
Instructions
Instructions are not currently available.
Shipping
What does it fit?
Fits: 1990-1993
Emissions
Emissions do not apply.
Warranty
1 year
SKU
Horrors! After years of passing the Arizona emission test, my Miata failed this year (2025)! Basically the CO reading that was over the limit. Reading the details provided for the O2 sensor offered by FM for my NA Miata, I found that the O2 sensors can degrade causing an overly rich fuel flow, and mine was now over 30 years old, so I ordered it, fitted it and went back to the emissions test station and passed easily. So thanks Flyin' Miata, as usual finding the right part, ordering it and receiving it safely packaged was easy!