Demystifying the PO446 Code A Comprehensive Guide to Evaporative Emissions Control

This code indicates that there's a problem with the vent valve, the control circuit for that valve, or a blocked vent valve in the EVAP system. Replace the existing EVAP canister vent solenoid and bracket. This new vent solenoid has an enhanced filtering capability and a filter element that can be ... P0446 is for a partially or fully plugged evap system. Stuck closed vent valve, pinched line, plugged vent valve, etc. Engine light on with EVAP code in your car or truck? Rapidly find the problem in your EVAP system. 1A Auto: Repair Tips & Secrets Only Mechanics Know P0446 Evaporative Emission Control System Vent Control Malfunction · Navbar Menu · P0446 Evaporative Emission Control System Vent Control ... General Technical & Electrical - P0446 EVAP Vent Control Circuit - Hey everyone! My 2007 2.3L gave a code P0446 : Evaporative Emission ... So my truck is giving the code P0446 which is evap emission control system vent circuit malfunction. I have read a bunch of the posts on ... The code is for a blockage in the ventilation system though, which should be either a clogged filter in the canister, a bad shutoff valve or a ... I've had this P0446 Evap code that keeps popping up, and it's been difficult to fill up the tank without the nozzle clicking off several times. P0446 is not an electrical issue--it indicates a physical blockage in the vent portion of the evap system.