Hello Toyota techys,
sorry to bring this up again but I don't seem to have found anyone who has successfully found and repaired this fault, but I wondered if you can help.
I have oxygen sensor problems on the rav4 1AZ-FE,
error codes im getting are.
P0430 Catalyst System Efficiency Below Threshold (Bank 2)
P0420 17 Catalyst System Efficiency Below Threshold (Bank 1)
cylinder 1 misfire, cylinder 4 misfire.
all same errors every time I reset them and try again.
im thinking either the top two 02 sensors could be causing all these problems?
i have ordered these and they will be in tomorrow costing me £82ea+vat from euro car parts.
I have seen various other remedy's not explaining themselves very well
, like cat gone,well can I test this? if sensors are dead any way of testing these and also read that they can be cleaned any ideas if this works?
any ideas welcome...
please help. I can see this costing a fortune to repair.