Unlocking the Secrets of P0446 A Comprehensive Guide for Automotive Enthusiasts

P0446 is a diagnostic trouble code (DTC) for "Evaporative Emission Control System Vent Control Circuit Malfunction". This can happen for multiple reasons. I was popping a 446 after every 120-150 miles or so. Now at 300 and no codes so still with fingers crossed. I also wanted to add my mpg went up from 16 to the ... If you drive in a dusty/dirty enviroment, the EVAP canister vent valve can become blocked with dirt and crud. ... and a new bracet for the valve, ... The Purge Valve is till working, but it seems the canister isn't venting and my hoses are good. I left the cap slightly lose so it could vent, The truck seemed ... 2007-2010 owners out there that might currently be experiencing the dreaded P0449, or P0445 (with tighten gas cap on the DIC) codes. It could be the canister vent valve sticking, it could be a line leaking or it could be the canister itself. The code - P0446: EVAP Emission System vent control circuit. This can get triggered due to a bad connection, faulty canister close valve. Malibu - Error code PO446 - Hi, I have a 2001 Chevy Malibu with the error code PO446. It turns on the check engine light, but when I scan it ... Share your videos with friends, family, and the world. http://www.wellsve.com/ This video demonstrates how to test for a Toyota EVAP code p0446. How to also test an early vacuum switching valve ...