I bought myself a cheap obdii scanner & found the code p0420, reset it & generally if i go to c.70 it comes on again Explore common causes and symptoms of dtc p0420 and counterpart, p0430, providing practical troubleshooting tips to effectively. I've put in new plugs, wires, egr cleaned, and new o2.
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The most common fix for p0420 in the mazda miata is a new catalytic converter, followed by an o2 sensor replacement.
My ecu has been giving me a p0420 code for a couple of months
Each time i check the code, the cel light goes out for a. Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on. The p0420 code for mazda vehicles indicates that the catalyst system's efficiency is below the threshold on bank 1.
