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

When is the code detected?

An improper voltage signal is sent to Engine Control Module (ECM) through the valve.

Symptoms

– Engine Light ON (or Service Engine Soon Warning Light)

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.

P0443 Information for specific makes

P0443 NISSAN
P0443 INFINITI
P0443 FORD
P0443 HONDA
P0443 ACURA
P0443 CHRYSLER
P0443 DODGE
P0443 JEEP
P0443 ISUZU
P0443 KIA
P0443 MAZDA
P0443 MITSUBISHI
P0443 LEXUS
P0443 TOYOTA