Unlock the Secrets Decoding P0446 Evaporative Emission Control System Malfunction

Possible causes · Missing Fuel cap · Incorrect fuel filler cap used · Fuel filler cap remains open or fails to close · Foreign matter caught in ... Code P0446 relates to the Evap. ShutoffValve which is located under the truck near the spare tire. Read the information in the pdf and decide if ... P0446 is not an electrical issue--it indicates a physical blockage in the vent portion of the evap system. This code is directly connected to the vent valve, vent valve wires, and vent valve tube. So you'll see it if there's wiring issues, a leak in the tube, or ... -The EVAP vent solenoid valve controls fresh airflow into the EVAP canister. The valve is normally open. The control module commands the valve ... What is a P0446 Code? Better yet, what the heck is a Evaporative Emission System Vent Control Circuit? Well I ran into this problem with my ... A P0446 code is generic for an evaporative emission system vent control circuit. 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, ... Powertrain Diagnostic Trouble Code (DTC) Type Definitions. Scan Tool Reference. Special Tools Required. J 41413-200 Evaporative Emissions System Tester (EEST). The ODBII code P0446 indicates a malfunction in the evaporative emission control system's vent control circuit, which may affect the system's ability to.