P0443 MAZDA - Evaporative Emission Control System Purge Control Valve Circuit Malfunction
P0443 MAZDA 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
First diagnose P0443 MAZDA code
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 terminals.
P0443 MAZDA Tech Notes
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Cost of diagnosing the P0443 MAZDA code
Labor: 1.0The cost of diagnosing the P0443 MAZDA 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.
When is the P0443 MAZDA code detected?An improper voltage signal is sent to Engine Control Module (ECM) through the valve.
P0443 MAZDA Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P0443 MAZDA MeaningThe 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.
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