P1445: EVAP Canister Purge Volume Control Valve (Nissan)
Severity: low
What it means: On Nissans, the computer sees a problem with the EVAP purge valve or its circuit. That valve lets fuel vapor from the charcoal canister into the engine to be burned instead of vented into the air.
Safe to drive? Usually safe to drive. A stuck-open purge valve can act like a vacuum leak and cause rough running or hard starting after a fill-up. Get it checked at your convenience.
Common symptoms
- Check-engine light
- Sometimes rough idle or hesitation
- Hard starting right after refueling (if stuck open)
- Failed emissions test
Likely causes, ranked
- Faulty purge volume control valveDIY
- Damaged wiring or connector to the valveDIY
- Cracked or loose EVAP hosesDIY
- Computer fault (rare)Shop
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Vehicle-specific notes
- 1995–1998 Nissan 200SX: A 1997 200SX 1.6 owner had P0304 twice plus P1445 with hesitation under load. New spark plug wires cured the hesitation; members said P1445 points to the EVAP purge valve circuit, to be handled after the misfire. Read the full answer · Source
DIY or shop?
Often DIY: the valve and hoses are usually easy to reach in the engine bay. A smoke test for leaks is shop work.
Before you replace parts
- Fix any misfire codes first.
- Read all stored codes and freeze-frame data, not just this one.
- Check your VIN for recalls, service bulletins and extended coverage.
- Inspect wiring and connectors for the related sensor or part before buying parts.
- Clear the code only after a repair, then confirm it stays off.
Safety / mechanic note
Verify with a mechanic. Fuel vapor is flammable. Don't work on EVAP lines near sparks or heat. A code points to a circuit or system, not always a specific part.
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