When does PCM set purge valve code p0443?
Thus, when a malfunction occurs in the purge valve control circuit and the PCM cannot control the purge valve, code P0443 will be set as a result. Note that on some applications a single failure will set the code, while on others, several fault cycles may be required before a code is set and a warning light is illuminated.
What does the evaporative error code p0443 mean?
Error Code P0443 is described as the Evaporative (EVAP) Emission System Purge Control Valve Circuit. This means one of the purge valve is malfunctioning or the purge valve circuit is short or open. The ECM operates the ground circuit to control the valve, which opens the purge valve at specific time intervals, allowing gas to get into the engine.
How does the purge volume control solenoid valve work?
The 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 ECM.
What does the p0443 code on a Ford F-150 mean?
Like the P0443 code, the P0444 code (EVAP Purge Control Valve Circuit Open) and P0445 code (EVAP Purge Control Valve Circuit Shorted) also relate to the purge control valve. Many owners have reported P0443 for the following makes: Ford (especially on a Ford F-150), Chevrolet, Dodge, Nissan, and Jeep.
What causes a purge valve to set code p0443?
The cause of code P0443 can be a purge control valve internal open circuit or the connector is corroded causing loss of contact with the valve. The code can also be set if the wiring to the valve is damaged between the ECM and the purge valve causing an open circuit if the wire is cut or a short if the wire is shorted to ground or a power source.
What does the p0443 Ford engine code mean?
P0443 FORD Meaning. 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 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 ECM.
What’s the code for the canister purge valve?
Code P0443 deals with two components. The EVAP Canister Purge Control Valve (this video) and the Purge Control SOLENOID valve (video link below). The EVAP Canister Purge Control Valve works with the Canister Purge SOLENOID valve.