P0420 /po 430Nissan -

Question

Hey

if i get this codes of may maxima qx a 33,must i change all sensors or only the after catlysator

its 4 sesors of this car

Answer 1

you would only have to replace the catalytic converter. the sensors have a code of their own. p0420 is bank 1 close to fire wall. p0430 b2 closes to radiator.