Source-backed diagnostic reference

P1459 EV diagnostic code

EVAP Purge Flow Switch Malfunction

Reference status: This page preserves source-backed code definitions for discovery. Manufacturer/model applicability, repair steps and safety conclusions are not treated as verified unless a manufacturer-specific verified report is available.

Reference definitions

ACURA: EVAP Purge Flow Switch Malfunction Source
BMW: Heated Catalyst Heater Power Supply Open Circuit Bank 2 Source
HONDA: EVAP Purge Flow Switch Malfunction Source
INFINITI: EVAP Purge Flow Switch Malfunction Source
VOLKSWAGEN: Exhaust Gas Temperature Sensor 2 Range Performance Source

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