Unlock the Mystery of P0446 Diagnosing and Resolving

This diagnostic trouble code (DTC) is a generic OBD-II powertrain code. It is considered generic because it applies to all makes and models of vehicles (1996- ... DTC P0446 Evaporative Emission Vent System Performance How to fix P0446 EVAP Vent system performance code on a GM or Chevy truck. It is most likely the valve in a line coming out of the gas tank. But they'd have to diagnose to know for sure, ie, supply power to the valve to see if it ... With a P0446 OBD-II trouble code, here are some things to try: Replace Vent valve, Repair open, short, or resistance problem in control circuit, Repair open, ... 2005 Prius (186k miles) throwing the P0446 error code (Evap Emission Control System Vent Control Malfunction). It was in the shop twice last year for this. The P0446 error code signifies a problem with the evaporative emission control (EVAP) system's vent control circuit. P0446 is set when there is an evaporative emissions leak from the components or when there is a malfunction in either the VSV for EVAP, the VSV ... ... fix this P0446 code the first time! Please thumbs up and subscribe! Check us out on social media! Facebook - https://www.facebook.com ... Our 2001 Toyota Sienna failed it's Massachusetts emissions test this year, the problem was with the evaporative emissions control system (code # ... i'm trying to solve my ECU P0446 light. Just changed the Gas cap, old one was pretty lose. I did restore the codes ( temporary and confirmed ) ...