Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
EVAP System DTCS
; EVAP System Very Small Leak Detected (2005-2006 models) DTC P0443 EVAP Canister Purge Valve Circuit Malfunction (2005-2006 models) DTC P0451 FTP Sensor Circuit Range/Performance Problem (2002-2004 models) DTC P0451 FTP Sensor Circuit Range/Performance Problem (2005-2006 models) DTC P0452 FTP Sensor Circuit Low Voltage (2002-2004 models) DTC P0452 FTP Sensor Circuit Low Voltage (2005-2006 models) DTC P0453 FTP Sensor Circuit High Voltage (2002-2004 models) DTC P0453 FTP Sensor Circuit High Voltage (2005-2006 models) DTC P0457 EVAP System Leak Detected/Fuel Fill Cap Loose or Missing (2005-2006 models) DTC P0496 EVAP System High Purge Flow (2005-2006 models) DTC P0497 EVAP System Low Purge Flow (2004 model) DTC P0497 EVAP System Low Purge Flow (2005-2006 models) DTC P0498 EVAP Canister Vent Shut Valve Circuit Low Voltage (2005-2006 models) DTC P0499 EVAP Canister Vent Shut Valve Circuit High Voltage (2005-2006 models) DTC P1454, P2422 FTP Sensor Circuit Range/Performance Problem (2005-2006 models); EVAP Canister Vent Shut Valve Stuck Closed Malfunction (2005-2006 models) DTC P1456 EVAP Control System Leakage (Fuel Tank System) (2002-2004 models) DTC P1457 EVAP Control System Leakage (EVAP Canister System) (2002-2004 models)
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.