Code Definition

P1492 — EVAP Purge Control Solenoid Valve

System: Powertrain  |  Type: Manufacturer-Specific  |  Make: Nissan

About P1492

P1492 is a manufacturer-specific powertrain diagnostic trouble code recorded for Nissan vehicles. It belongs to the P-prefix family of codes, which covers engine, transmission, emissions, or fuel-system faults.

Scanning & clearing: A generic OBD-II scan tool will usually read and clear powertrain (P) codes. For live data, freeze-frame capture, and bi-directional tests you may need a more capable scan tool that supports the vehicle's ECM protocol.

P1492 is a manufacturer-specific code. The same code string on a different make may have a different meaning. Always confirm the code's definition against the vehicle's service information for the specific make and model under test.

Code Information

The EVAP purge control solenoid valve on Nissan vehicles is an electrically operated valve in the evaporative emission (EVAP) system that the Engine Control Module (ECM) uses to control purging of fuel vapour from the charcoal canister into the intake. On systems with a vacuum operated purge valve, this solenoid switches the vacuum that opens the purge valve. DTC P1492 sets when the ECM detects an electrical fault in the purge control solenoid valve circuit, such as an open or short, so the valve does not respond as commanded. Symptoms are usually limited to the check engine light, though purg...

Join TaT to view the complete code information and diagnostic details.

Quick Facts