P0446 toyota 4runner. This is the solenoid that opens to allow air into the charcoal canister during a purge cycle. P0446 toyota description the evaporative system evap canister vent control valve is located on the evapcanister and is used to seal the canister vent. When the ecm sends an on signal the coil in the solenoid valve is energized.
This solenoid valve responds to signals from the engine control module ecm. Evap system control circuit malfunction 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. It often appears with other codes such as p0420 p0441 or p0440.
A p0446 evaporative emissions system gross leak detected toyota defined meaning sets when there is a fault detected in the evaporative system. This code is pretty specific to a problem with a specific circuit. If your 4runner has warned you at all in the last few months that the fuel cap was off when it wasnt then replacing it would be a great first step.
This trouble code references a number that is given to you when you plug your 4runner into a obdii scanner. The solenoid is normally closed. Specifically p0446 indicates an evaporative emission control evap system vent control circuit malfunction.
Toyota is having a lot of problems with failures in their evap systems. 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. Why are they fooling around with the gas cap and smoke tests.
P0446 indicates that there is a fault in the evaporative emission control system. A very common trouble code with the toyota 4runner is the p0446 code. This will not damage the engine.
The most common code p0446 pertains to the vent solenoid. When the ecmsends an on signal the coil in the solenoid valve is energized.
1999 Toyota Camray Fault Code Po466 Evap Emission Control Fault Keeps Returning After Clearing Memory Also Trac Off Lite
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