code 446 on in Echo toyota. Why?

Asked by Mar 08, 2017 at 03:06 PM about the 2000 Toyota ECHO 4 Dr STD Sedan

Question type: Maintenance & Repair

why a 446 code is on.  engine light on.

2 Answers

87,135

P0446 TOYOTA - EVAP System Vent Control Circuit...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...

87,135

This is on testing of the vapor canister...https://youtu.be/-WY5EVU8sj0

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