The Check Engine Light may illuminate due to an evaporative emission (EVAP) system fault. Our technicians tell us these EVAP system faults can be difficult to diagnose but it is not uncommon to find a failed charcoal canister or a loose or worn gas cap.
Check Engine Light Due to EVAP System Fault on Toyota Sienna
Average mileage: 128,863 (2,300–226,000)
27 people reported this problem
Viewing 1 - 10 of 10 comments
Dealer mechanics tell me it needs a charcoal canister replacement. Says the part costs $1100.00 not including labor. Is this really necessary???
replaced canister and both VSVs under the hood. Still have the error
Check engine light due to EVAP system. p0446
Check engine light went on. Mechanic diagnosed P0440 problem - Evap system. Checked all - hoses, gas caps, solenoid, valve, and pinpointed to carbon canister. Not fixed yet, but will cost $375 parts + $50 labor.
Had to take it in and it cost me about 300.00 to repair.
Dealer says new charcole filter for 610 parts + labor. Seems very high for a filer
engine light and code.changed charcoal filter and switch on fuel rail.fixed the problem.
This is in kilometers not miles. The error was coming up so I just cleared it with my obd2 reader. It comes up once in awhile but I just clear it. No real issues so far.
Dealer to replace canister, I suggested new gas cap as well. Cheap fix
Engine lights came on. Took to the dealer and they said that my charcoal canister is bad. They want over $1,000 to replace it.