Engine-Codes - Generic - P0443

P0443 - Evaporative Emission Control System Purge Control Valve Circuit Malfunction

Repair Importance Level: 1/3
Repair Difficulty Level: 3/3  What is this?
Table of contents

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

How is the P0443 code repair?

Start by checking 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.

What is the cost to diagnose the P0443 code

Labor: 1.0

The cost to diagnose the P0443 code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.
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When is the code detected?

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

Possible Symptoms

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

P0443 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 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.

More Information

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Information for specific makes

  • P0443 ACURA EVAP Canister Purge Valve Circuit Malfunction
  • P0443 BUICK Evaporative Emission Control System Purge Control Valve Circuit Malfunction
  • P0443 CADILLAC Evaporative Emission Control System Purge Control Valve Circuit Malfunction
  • P0443 CHEVROLET Evaporative Emission Control System Purge Control Valve Circuit Malfunction
  • P0443 CHRYSLER EVAP Purge Control Circuit
  • P0443 DODGE EVAP Purge Control Circuit
  • P0443 FORD EVAP Purge Control Circuit  
  • P0443 GMC Evaporative Emission Control System Purge Control Valve Circuit Malfunction
  • P0443 HONDA EVAP Canister Purge Valve Circuit Malfunction
  • P0443 INFINITI EVAP Canister Purge Volume Control Solenoid Valve
  • P0443 ISUZU Evaporative Emissions Purge Solenoid Control Circuit
  • P0443 JEEP EVAP Purge Control Circuit
  • P0443 KIA EVAP Emission System Purge Control Valve Solenoid Malfunction
  • P0443 LAND-ROVER Evaporative Purge Valve Output Drive Open Circuit  
  • P0443 LEXUS Evaporative Emission Control System Purge Control Valve Circuit
  • P0443 LINCOLN EVAP Purge Control Circuit
  • P0443 MAZDA Evaporative Emission Control System Purge Control Valve Circuit Malfunction  
  • P0443 MERCEDES-BENZ Evaporative Emission Control System Purge Control Valve Circuit Malfunction
  • P0443 MERCURY EVAP Purge Control Circuit
  • P0443 MITSUBISHI EVAP System Purge Control Valve Circuit
  • P0443 NISSAN EVAP Canister Purge Volume Control Solenoid Valve
  • P0443 PONTIAC Evaporative Emission Control System Purge Control Valve Circuit Malfunction
  • P0443 SATURN Evaporative Emission Control System Purge Control Valve Circuit Malfunction
  • P0443 TOYOTA Evaporative Emission Control System Purge Control Valve Circuit

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