Q: Evap codes on a Sienna 2001

asked by on

I have a Sienna 2001. My codes are PO440PO446. Evap and catalyst not ready. Do I need to change a charcoal canister?

Yes and unfortunately, with those EVAP codes, it can be a lot of things. On your particular model, the problem is often a bad charcoal canister and EVAP canister vent valve. Which comes as an assembly when you buy it. In order to check this out, it takes a professional mechanic. There is no way around that.

The worst thing would be to guess since it’s an expensive part. A certified technician from YourMechanic can analyze it and fix the issue for you. There is a lot of testing that has to be done because you are dealing with a pretty expensive part, they are very complicated systems.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Evap codes on a Sienna 2001

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: My Alignment and Brake mechanic, says I need motor mount replacement.

This is definitely a sure sign of broken motor mounts. As you may have noticed the torque of the engine causes it to rise when shifting in or out of gear when a motor mount is not securely holding the...

Q: Truck runs really rough, smells like antifreeze in the cabin, testing said it was O2 sensor, and there is an overheating, hissing noise

Hello. You can possibly rent a cooling system pressure tester from a local chain auto parts store. With the engine off, remove the radiator cap and pump the cooling system to no more than 10 psi. You will be able...

Q: Check engine light on getting code P0462

Replacing the pump will probably take care of this.The fuel pump on your car is one of those integral in-tank units that has several functions including the fuel level sensor and the fuel tank pressure sensor. The fuel level sensor...

Related articles

Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.