PO446 Code Evaporative Emissions System Malfunction - Diagnosis and Repair

The P0446 codes triggered when an improper voltage signal is sent to Engine Control Module (ECM) through EVAP canister vent control valve. My check engine light is on and the code is P0446. Information I know. Definition: EVAP purge/vent solenoid circuit condition. Explanation: The ... Chased around a P0446 code for a week and finally fixed it today. 1. Replaced gas cap - code came back 2. Replaced Vent valve - $30 - code came back 3. Took ... It could be as simple as the gas cap not seating correctly or could be, like in my case, the fuel line was rusted and leaking pressure and gas. 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 ... i'm trying to solve my ECU P0446 light. Just changed the Gas cap, old one was pretty lose. I did restore the codes ( temporary and confirmed ) ... P0446 is triggered when the ECM has detected improper resistance in the circuitry to activate the vent control valve. Check the Ground and power ... Most commonly, this is a problem with the EVAP Vent Valve. However, this can also be due to a faulty Fuel Tank Pressure Sensor or a clogged EVAP ... Code P0446 indicates that there is an improper voltage drop in the EVAP Vent Valve circuit, which can be caused by either too little or too much electrical ... Make sure the hose is good and clear. Basically, the code sets when the tank pressure sensor sees a vacuum when the purge is opened to manifold ...