Hi all,
just looking for a little help.
My check engine light came on in my 2001 rav4 and i pulled 2 codes (1135,1155) both a/f senors bank 1 sensor 1 and bank2 sensor 1. I replaced them both and now I'm still getting code 1155. Cat is new and mass air is as clean as can be, What else could it be. Oh and another thing it is highly unlikely that it is the sensor because i have already tried a second sensor and they both do the same.
thanks in advance