Unlocking the Secrets of P0446 EVAP System Vent Control Circuit Malfunction

Techstream is the same diagnostic software that the dealer technicians use everyday, it doesn't get any better if you're serious about repair. ... po446, pressure, sensor, tank · Subscribe. Related Topics. evap code p0446....?helpppp and opinions? throwing code p0446 · p0446 evap canister ... The manual I have shows the canister on the PS firewall area, with the Evap. gas check valve near the bottom of the canister. The purge solenoid ... Let's have a look at this Chevrolet Cobalt that came with a code P0446 for the EVAP Vent Solenoid Performance. I have an 04 Crew cab with the I5. My CEL light is on and I get the P0446 code (Evaporative Emission System Vent Control Circuit). Hey Andres, I understand you have fault codes P0446, P0453 and P0463. These faults would most likely indicate the vent solenoid is faulty. I would also ... Corroded wire causing a check engine light with code P0446 and hard refueling. P0446 indicates an Evaporative Emission Control (EVAP) system vent control circuit malfunction. Typically, this indicates a faulty vent valve. P0401 is usually the EGR VSV. P0446 can be a number of things including vapor leaks. I start with the gas cap (quick/easy). Sometimes it is the ... Share your videos with friends, family, and the world.