P1443moderate severityPowertrain
EVAP System Control Valve Malfunction
on 2020 Lincoln Aviator 3.0L Twin-Turbo V6 · RWD
What this code means
The Evaporative Emission Control System purge control valve has a malfunction, showing low or no flow. The EVAP canister purge solenoid is not operating correctly, which can allow fuel vapors to escape or cause driveability issues.
Symptoms
- Check Engine Light
- Decreased fuel efficiency
- Fuel odor
- Rough or erratic idle (if valve stuck open)
- Failed emissions test
Common causes
- Faulty purge valve/solenoid (stuck open or closed)
- Damaged or clogged vacuum lines
- Defective charcoal canister
- Wiring issue to purge solenoid
- Clogged hose between purge valve and fuel tank
Diagnostic steps
- Command purge solenoid open/closed with scan tool and verify operation
- Test purge solenoid resistance
- Inspect vacuum lines for cracks or blockages
- Use smoke machine to check EVAP system for leaks
- Check for blockages between fuel tank and canister
Repair notes
Replace purge valve solenoid. Repair damaged vacuum lines. Replace charcoal canister if contaminated.
Other Powertrain codes on this vehicle
P0001
Fuel Volume Regulator Control Circuit/Open
P0002
Fuel Volume Regulator Control Circuit Range/Performance
P0003
Fuel Volume Regulator Control Circuit Low
P0004
Fuel Volume Regulator Control Circuit High
P0010
Intake Camshaft Position Actuator Circuit/Open Bank 1
P0011
Intake Camshaft Position Timing Over-Advanced Bank 1
P0012
Intake Camshaft Position Timing Over-Retarded Bank 1
P0013
Exhaust Camshaft Position Actuator Circuit/Open Bank 1
P0014
Exhaust Camshaft Position Timing Over-Advanced Bank 1
P0015
Exhaust Camshaft Position Timing Over-Retarded Bank 1