Question about 2001 Mazda MPV
Need to know what this code is, error code P0431 and how to fix it
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Posted on Jan 02, 2017
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P0431 Warm up catalytic converter, bank 2 - efficiency below threshold
Possible causes: Catalytic converter, wiring, HO2S 2
Usually caused by worn out catalytic converter, but always check fuel pressure regulator for proper operation before replacing a converter.
P0446 Evaporative emission (EVAP) system, vent control -circuit malfunction
Possible causes: Wiring, EVAP canister purge valve, ECM
May be caused by a loose or disconnected wire to the vent valve or possibly a bad valve solenoid
If you would like part locations, troubleshooting or replacement procedures, please let me know.
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