Question

Hi,Toyota Avalon 2004 with codes P0442 & P0446... please help

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Answer 1

P0446 Evaporative emission control system malfunction

P0442 EVAP small leak detected

When it comes to the P0446 just setting was there recently a airfilter check ? there a vacuum  or the EVAP hose that is situated there during a airfilter replacement or even checking it , the evap hose tends to get disconnected causing a EVAP code large of small. There also the airduct from the airfilter housing to the throttle body that air duct commonly rips (These are for the engine that does not have a MAF sensor) because of that rip the EVAP  system cant work properly