DTC P1459 Acura
EVAP Purge Flow Switch Circuit Malfunction
EVAP Purge Flow Switch Circuit Malfunction
Description
Engine running at cruise speed and than back to idle speed, ECT sensor signal more than 154ºF, and the PCM detected an unexpected voltage condition on Purge Flow switch circuit.
Cause and Solution
Purge flow switch is open, shorted to ground or to power (B+)
Purge flow switch vacuum line is loose, bent or damaged
Purge flow switch is damaged or has failed
PCM has failed
Video Guide
Diagnostic Info
- DTC Code: P1459
- Brand: Acura