TorqueMech OBD Code Guide
P0443 - EVAP Purge Valve Circuit
Purge valve control circuit fault detected.
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Common Next Steps
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Smoke test EVAP system
Use smoke testing when the leak source is not obvious.
Verify purge sealing
Check purge command and sealing before replacing the valve.
Check vent operation
Command the vent valve and inspect canister-side blockage or contamination.
Related Inspection
Code Overview
Purge valve control circuit fault detected.
Common Causes
- Valve/sensor failure
- Wiring/connectors issue
- EVAP leak/restriction
Diagnostic Steps
- Inspect gas cap and EVAP hoses
- Inspect wiring/connectors
- Command purge/vent (if available)
- Smoke test EVAP system if available
Related OBD Codes
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Next Steps
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