Infiniti DTC P1459 – EVAP Emission Purge Flow Switch Malfunction
DTC P1459 meaning on Infiniti
DTC P1459 on an Infiniti refers to an issue with the EVAP Emission Purge Flow Switch. This diagnostic trouble code indicates a malfunction in the purge flow switch circuit of the vehicle’s evaporative emission control system.
Infiniti DTC P1459 symptoms
- Check Engine Light (CEL) illuminated on the dashboard
- Decreased fuel efficiency
- Strong fuel odor
- Issues with vehicle’s emissions control system
Infiniti DTC P1459 causes
- Faulty EVAP Emission Purge Flow Switch
- Wiring or connector issues in the purge flow switch circuit
- EVAP system leaks
Infiniti DTC P1459 seriousness
The seriousness of DTC P1459 on an Infiniti lies in its impact on emissions control and fuel efficiency. While the vehicle may still be operable, continued driving with this issue can lead to increased emissions and potential long-term damage to the engine and catalytic converter.
How to diagnose DTC P1459 on Infiniti
- Use an OBD-II scanner to retrieve the specific trouble code
- Inspect the EVAP Emission Purge Flow Switch and its wiring for any visible damage
- Check for leaks in the EVAP system using a smoke machine
- Test the purge flow switch for proper operation
How to fix DTC P1459 on Infiniti
- Replace the faulty EVAP Emission Purge Flow Switch
- Repair any damaged wiring or connectors in the purge flow switch circuit
- Address any leaks in the EVAP system and ensure proper sealing
- Clear the trouble code and reset the Check Engine Light
How to erase DTC P1459 on Infiniti
- Use an OBD-II scanner to clear the trouble code
- If the underlying issue has been fixed, the Check Engine Light should turn off
- Ensure that the vehicle operates normally and monitor for any recurrence of the code
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