Engine code p0446 - 1999 Toyota Corolla

Hello Catherine, Code P0446 - EVAP Emission System ( Vent Control Circuit)For more info follow the link below. https://www.2carpros.com/questions/kia-sorento-2004-kia-sorento-check-engine-code-p0446

P0446 Evaporative Emission Control System Vent Control Circuit Malfunction. The code P0446 is set when the engine computer recognizes a fault or restriction at the vent control part of the Evaporative emission control system (EVAP).

https://www.obd-codes.com/p0446

P0446 TOYOTA - EVAP System Vent Control Circuit

Read more: http://www.engine-codes.com/p0446_toyota.html

Well code 446 is for a problem with the EVAP system which vents fumes from the gas tank to the vapor canister.
You would need to check the system using a test chart for that code.
You can look online for the test procedure and the equipment required.

Vent control valve.

https://www.google.com/#q=2004+Kia+Optima+check+engine+light+on+codes+P0050+and+P0446.

Unfortunately, this code has nothing to do with the gas cap....
A code P0446 could mean one or more of the following has happened:

• Faulty vent valve
• Open, short or excessive resistance on Vent valve control circuit
• Blockage of vent valve
• Bad PCM

Here are some things you could try to fix it:

• Replace Vent valve
• Repair open, short, or resistance problem in control circuit
• Repair open, or short, or resistance problem in power circuit
• Replace PCM

how did you fix your p0446 code?

Hi, check out this article, it's detailed on what to check: http://www.obd-codes.com/p0446