Codes meaning and how to fix

Asked by GuruVN2LX Aug 29, 2018 at 09:58 PM about the 2000 Lexus RX 300 AWD

Question type: Maintenance & Repair

I have the following codes coming up on my
car p0440 p0446 p0441 just want to know
what they mean and what I need to do to fix
them

3 Answers
188,505

Paul answered 5 years ago

P0440: Possible causes Missing or loose fuel cap Incorrect fuel filler cap used Fuel filler cap remains open or fails to close Foreign matter caught in fuel filler cap EVAP canister or fuel tank leaks EVAP system hose leaking Fuel tank leaking. P0446: Possible causes Missing Fuel cap Incorrect fuel filler cap used Fuel filler cap remains open or fails to close Foreign matter caught in fuel filler cap Vent control valve harness is open or shorted Vent control valve circuit poor electrical connection Faulty vent control valve. P0441: Missing Fuel cap Incorrect fuel filler cap used Fuel filler cap remains open or fails to close Foreign matter caught in fuel filler cap Incorrect fuel tank vacuum relief valve l

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