What does Engine code P0446?
P0446: Evaporative Emission Control System Vent Control Circuit. Trouble code P0446 typically turns up in On-Board Diagnostic testing on account of an illuminated Check Engine Malfunction Indicator Lamp. This generic OBD-II code indicates that the evaporative vent valve in the emission control system is malfunctioning.
What does engine code P0441?
Code P0441 Meaning The evaporative emission control (EVAP) system prevents fuel vapors from escaping into the atmosphere. However, when check engine light code P0441 is set, the purge valve is not properly regulating the flow of the fuel vapors by allowing too much flow or too little flow.
What does the p0446 code on a Toyota mean?
P0446 TOYOTA Meaning. The Evaporative System (EVAP) canister vent control valve is located on the EVAP canister and is used to seal the canister vent. This solenoid valve responds to signals from the Engine Control Module (ECM). When the ECM sends an ON signal, the coil in the solenoid valve is energized.
What is the trouble code on a Toyota Corolla?
This trouble code references a number that is given to you when you plug your Corolla into a OBDII scanner. P0446 Indicates that there is a fault in the evaporative emission control system. It often appears with other codes, such as P0420, P0441, or P0440. P0446 is normally not an immediate threat to the drive-ability of your vehicle.
What does p0446 mean on an EVAP system?
Specifically, P0446 indicates an Evaporative Emission Control (EVAP) system vent control circuit malfunction. Typically, this indicates a faulty vent valve, a bad control circuit for that valve, or a blockage in the vent valve. In all cases, it clearly shows the mechanic that a check of the EVAP vent valve is in order. The vent…
What is the diagnostic code for a Toyota?
P0446 Code – Toyota. The P0446 OBD-II code often triggers with other related EVAP codes (like P0441), and the specific combination of codes can give your mechanic a better idea of where the actual problem lies.