Unraveling the P0446 Code A Comprehensive Solution for Vehicle Owners

the po446 dtc is checking for a blocked evap path. it does this by commanding the purge valve open and watching for vacuum build up from the ... What does code P0446 mean? When code P0446 shows up on a diagnostic scan of your vehicle, a technician knows that there is something going wrong with your EVAP ... A P0446 is not a code that points to a specific problem, rather it indicates a voltage irregularity in the EVAP vent control circuit. P0440, P0442, and P0446 are all EVAP related codes that are the inverse of one another. One is for not being able to maintain pressure and decay at a ... P0446 Evaporative Emission Control System Vent Control malfunction. ... My car has been throwing this code for awhile, and i can't figure out why. The part you are talking about is on the driver side inner fender, it is the part with the rubber flange that just sits on a bracket. On the US models there is a valve that is located on the DS valve cover(front) that has some small vac hoses and an electrical connection. The ... It deals with the evap system for the fuel tank. From what I read online, it's fine to drive with it, which I guess I'll have to because the dealer can't see ... P0446 Evaporative Emission Control System Vent Control Malfunction · Navbar Menu · P0446 Evaporative Emission Control System Vent Control ... If the vent control circuit is throwing a code, the vent isnt opening to allow pressure release on fill up. Thus causing the fill neck to back ...