Code Definition

P1446 — Evaporative Emission leak detection solenoid

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

About P1446

P1446 is a manufacturer-specific powertrain diagnostic trouble code recorded for Kia 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.

P1446 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 evaporative emission leak detection solenoid is the valve the Engine Control Module (ECM) operates to seal or open the EVAP system during the leak detection routine, allowing the system to build and hold a reference pressure or vacuum. DTC P1446 sets when the ECM detects the leak detection solenoid is not performing as expected, either from an electrical circuit fault or because the solenoid does not seal and the system cannot reach or hold the expected reference. Causes include the solenoid coil, its wiring and connector, a stuck or contaminated valve, or vacuum and hose faults around the...

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