Check Engine Light With Codes P0440, P0441, P0442, or P0446 on Lexus RX330

The Check Engine Light may illuminate with various EVAP system fault codes stored. Our technicians tell us this may be caused by a sticking EVAP Purge Vacuum Switching valve. An improved valve is now available to remedy this problem.

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Average mileage: 136,666 (133,000–142,000)
1 model year affected: 2004
4 people reported this problem
3 people shared problem details
2004 Lexus RX330133,000
airbag warning light on all the time flashing it is not fixed stored in history of error code
2004 Lexus RX330135,000
Same codes....told it might be the valve vacuum switch.
Have all these codes on this same vehicle. Have checked all the usual but so far not finding the issue.
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