Код ошибки p0421 на Мазде

P0421 Check Engine Light Fix "2001 Mazda protege 2.0 ES" (make not important!)

P0421 on 2003 Mazda Protege 5, catalytic converter remove and install

Po420 po43O po421 po431.. Catalytic converter codes

Mazda 3 purge control valve 911-701 P0455 P0421 P0422

?como limpiar catalizador con CATACLEAN ERROR CODE P0421

P0455 Diagnose Replace Purge Control Valve Mazda 3 √

P0421 my 2003 Mazda Protege5 needs a CalCat (California Catalytic Converter)

ОБМАНКА НАГРЕВАТЕЛЯ ДАТЧИКА КИСЛОРОДА | Ошибка P0036 .

Mazda Protege OBDII Code P2009

How to Change Plugs, Wires, Coil & PCV Valve in Minutes! Mazda Protege Example