P0443

Issue: P0443 Evaporative Emission Control System Purge Control Valve Circuit Malfunction
Code: P0443
Time: Wednesday, December 30, 08:36
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
Possible Symptoms: Engine Light ON (or Service Engine Soon Warning Light)
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.
Possible Solution: Check the "Possible Causes" listed above.  Visually inspect the related wiring harness and connectors.  Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.