P1448 — EVAP Canister Vent Control Valve (Stuck Open)

SAFEIs it safe to drive? Generally OK to keep driving — fix it at your convenience.

What P1448 means

This is a manufacturer-specific code — its meaning depends on the vehicle’s make (see below).

What P1448 means on specific makes

Nissan / Infiniti SAFE

The EVAP canister vent control valve is stuck open (P1446 is the closed/control fault). This is the valve that seals the system for leak tests; stuck open prevents proper EVAP monitoring.

  1. Failed/stuck vent control valve ($40-120)
  2. Debris/corrosion in valve
  3. Connector/wiring fault

Check first: Actuate the vent valve with a scan tool and listen/check for movement; replace if stuck.

Source: ricksfreeautorepairadvice.com/nissan-obd2-codes, troublecodes.net/nissancodes

Related codes

P1446P0446
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