Free API
3.3L Supercharged V64WDAUTOMATICgasVG33ERsupercharged
4 active safety recalls on this vehicle — view recalls
Founding sponsor spot is openYour name on every procedure for this vehicle, permanently.Sponsor — $99 →
P1448low severityPowertrain

EVAP Canister Vent Control Valve Open

on 2004 Nissan Frontier 3.3L Supercharged V6 · 4WD

What this code means

EVAP vent valve stuck open; system cannot seal for leak testing.

Symptoms

  • CEL
  • Failed emissions
  • EVAP monitor won't complete

Common causes

  • Faulty vent valve stuck open
  • Canister liner failure
  • Damaged wiring
  • Corroded pins

Diagnostic steps

  1. Test vent valve
  2. Inspect canister
  3. Check wiring
  4. Test with scan tool

Repair notes

Replace vent control valve.

Other Powertrain codes on this vehicle

🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years. Spot an error? Use the Help link above — a human reads every report.
Stuck on this repair? Take it to The Diag Desk — ask a master tech about this exact car → real human answer within 24h, never AI
⚠ STILL BEHIND THE PAYWALL
The 2004 Nissan Frontier repair data is incomplete because no one has sponsored it yet. For $99, we generate the full step-by-step procedures, then fact-check them with a second AI pass and your expert review. Your name on every procedure, permanently.
The same data would cost $169/mo from Mitchell1 or $30/year from ALLDATAdiy — and you'd be renting access, not freeing it. Sponsor once, free forever.
Sponsor the Nissan Frontier — $99 →
Building an app?
Free API access to all this data — 10 requests/day, no card required.
Get an API key →
Run a shop?
Manage repairs, estimates, and customers with ShopBase — $249/mo, all features included.
Try ShopBase →