Fault code P1453 – a step-by-step guide to diagnosing and fixing it

Error code P1453 is displayed and the check engine light is on - what does this mean?

The DTC P1453 is a manufacturer-specific fault code that is recognized by the OBD system and indicates a problem in the fuel tank ventilation system. This trouble code typically refers to a malfunction of the activated carbon filter or the EVAP system components and can have different specific meanings depending on the vehicle manufacturer.

What causes can this error code have?

• Defective activated charcoal filter
• Damaged tank vent valve
• Loose or damaged vacuum lines
• Defective purge valve
• Blocked fuel vapor lines
• Faulty pressure sensors in the EVAP system
• Damaged plug connections
• Defective control unit software

What symptoms occur in parallel with fault code P1453?

• Starting problems: The vehicle may be difficult to start or run rough
• Smell of fuel: Smell of gasoline in or around the vehicle
• Increased fuel consumption: Noticeably higher consumption than usual
• Check engine light: Permanent or intermittent display
• Loss of power: Reduced engine power during acceleration
• Uneven idling: Engine runs unevenly at idle speed

How can the problem with error code P1453 be resolved?

• Fixing EOBD error code P1453 requires a systematic approach to identify the defective component.
• Replacement of the activated charcoal filter including all associated seals and connections
• Complete inspection and repair of all vacuum lines of the tank ventilation system with replacement of damaged hoses
• Replacement of the tank ventilation valve including electrical connections and calibration
• Cleaning or replacement of the purge valve with subsequent function test
• Professional diagnosis and repair of the control unit software by a specialist workshop
• Replacement of defective pressure sensors in the EVAP system with system calibration