Check Engine Light on Due to EVAP Vapor Canister Fault on Toyota Corolla

The Evaporative system may have problems with the vapor canister releasing charcoal pellets that plug the vent valve. Typically a Code P0441, P0442 and P0446 will be set. The key code is the P0446 which is a vent valve electrical failure. The proper repair is to replace the entire canister with all the valves as a unit. This is located on top of the fuel tank and is expensive. Our Technicians tell us that for awhile Toyota was covering these problems, but this may have changed. It would not hurt to call the dealer if this problem occurs to see if Toyota is still helping with these repairs.

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Average mileage: 143,750 (30,000–345,000)
7 model years affected: 1996, 1997, 1998, 1999, more2001, 2005, 2012
13 people reported this problem
6 people shared problem details
1996 Toyota Corolla154,000
P0446 code
1999 Toyota Corolla345,000
codes for purge valve and vapor canister
1996 Toyota Corolla140,000
need to register my car but have code po441 coming up
2012 Toyota Corolla105,000
Check engine light on. cost me 120$ to diagnosis. Parts ordered, dealer stating will be $900 to make necessary repair.
check the engen light is on when i start it , the idling is down.. sometimes when i do change down to gear 2 and try to pick up, the comes on and won`t pick up until it`s goes off and pick up the speed.
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