P0443 – Evaporative Emission Control System Purge Control Valve Circuit Malfunction

 

P0443: DIY Repairing Video Tutorial

https://youtu.be/vuBVKjVg1JI

Check out nonda Auto DIY Center for more engine error code repairing videos.
https://www.youtube.com/playlist?list=PL-Lyko0O0oxHe1AGvzwAz-wokJPXAtW97

 

P0443 Possible Symptoms

  Engine Light ON (or Service Engine Soon Warning Light)  

P0443 Possible Causes

  Faulty Evaporative Emission (EVAP) Purge Solenoid Control,Evaporative Emission (EVAP) Purge Solenoid Control harness is open or shorted,Evaporative Emission (EVAP) Purge Solenoid Control circuit poor electrical connection  

P0443 Description

  The Evaporative Emission System (EVAP) canister purge volume control solenoid valve uses a ON/OFF duty to control the flow rate of fuel vapor from the EVAP canister. The EVAP canister purge volume control solenoid valve is moved by ON/OFF pulses from the Engine Control Module (ECM). The longer the ON pulse, the greater the amount of fuel vapor that will flow through the valve.