P0110 Toyota - 1999 Rav4

Question

Have a 99 Rav4 with error codes p0110 and p0446. Wondering what causes these.

Answer 1

Hi there,

P0110 is a fault code for a faulty intake air temp sensor. This is part of the air cleaner cap. In most cases a new IAT sensor is required to resolve the problem.

P0446 is an evap system vent control malfunction. This indicates that part of the evap system is not working properly. In several cases the issue is the vent control valve not working as it should. This usually requires replacement.