I have check engine light on with dtc p0446 ,what should be wrong

Asked by paul Nov 20, 2021 at 10:36 PM about the 1999 Lexus RX 300 AWD

Question type: Maintenance & Repair

I have a dtc p0446 evaporative emission system vent control circuit

1 Answer

38,925

I'm thinking there's a solenoid valve that opens to allow air to be vented from the gas tank to the engine . A technician could test it but you could replace it , probably on the motor or near the gas tank with a few small hoses coming out of it , I think . Your experience may differ .

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