P0450 Evaporative Emission Control Syst
Ihavean 01 and am getting the same PO446 code on mine. Looking for some info also. Dealer (Lexus) as I bought it used, has sort of thrown up their hands and blaming it on the aftermarket intake it has???? (not buying it) The thought from them is the hoses are not routed correctly,they are downstream of the mass air flow switch. I do not know yet if they should be up or downstream of the switch. Talking with local Toyota dlr svc guy did not think it was to blame. Any ideas?? Thanks.