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P0448 on NISSAN FRONTIER

EVAP System Vent Control Circuit Shorted

NHTSA Reports
2
Severity
Medium
Most Affected
2017, 2018
Crashes / Fires
0 / 0
Source: NHTSA Complaints Database · SAE J2012
Last reviewed: Last updated:

Methodology: We combine code standards with complaint and reliability patterns, then review for clear, vehicle-first diagnosis steps.

Sources: SAE/OBD-II definitions, manufacturer service information, and public reliability reports (including NHTSA where applicable).

Limits: Guidance is informational and may not match every model-year or revision. Confirm with the official manual and diagnostics before replacing parts. For safety-critical or electrical work, use a qualified technician.

What P0448 Means on Your NISSAN FRONTIER

P0448 is a diagnostic trouble code indicating: EVAP System Vent Control Circuit Shorted. This code relates to the emission controls system. The vehicle's computer detected a condition outside normal operating parameters and stored this code.

2 NISSAN FRONTIER owners have reported this issue to NHTSA across model years 2017-2018. Most reports come from the 2017, 2018 model years. The most commonly reported component is Fuel/Propulsion System (100.0% of reports).

Real NISSAN FRONTIER Owner Reports

Source: NHTSA Complaints Database

"I try and fill up fuel and the pump constantly shuts off. i have to pump the fuel super slow in order for it to fill up. i have tried different gas stations, same issue."

— 2017 NISSAN FRONTIER owner · FUEL/PROPULSION SYSTEM · Filed 11/09/2019

"I bought my 2018 frontier with 40k miles on it back in april 2018. i now have about 56k miles on it. over the last couple of months it got harder and harder to put gas in it and for a month now it shuts off multiple times and or spits gas out when i try to fill it."

— 2018 NISSAN FRONTIER owner · FUEL/PROPULSION SYSTEM · Filed 02/05/2019

All reports filed by vehicle owners directly with the U.S. Department of Transportation.

📊 Complaint Trend by Model Year

1
'17
1
'18

Common Causes on NISSAN FRONTIER

Based on NHTSA complaint component analysis for this vehicle.

FUEL/PROPULSION SYSTEM 100%

What To Do Next

  1. 1
    Check for recalls on YOUR VIN

    Go to nhtsa.gov/recalls and enter your VIN. If your vehicle is covered, repairs are free.

  2. 2
    Get a proper diagnosis

    A code alone doesn't tell you the exact failed part. A diagnostic at a shop ($50–$150) pinpoints the root cause before you spend money on parts.

  3. 3
    Compare repair quotes

    Get 2–3 quotes. Dealer vs. independent shop prices often differ 30–50% for the same repair.

Frequently Asked Questions

What does P0448 mean on a NISSAN FRONTIER? ▾
P0448 indicates: EVAP System Vent Control Circuit Shorted. This is a emission controls code. 2 NISSAN FRONTIER owners have reported this to NHTSA.
What are the most common causes of P0448 on NISSAN FRONTIER? ▾
Based on 2 NHTSA reports, the most commonly cited components are: Fuel/Propulsion System. These percentages are based on the component field in owner complaints.
Is P0448 serious on my NISSAN FRONTIER? ▾
Of 2 NHTSA reports for this code on NISSAN FRONTIER, none involved a crash or fire. However, any diagnostic code should be evaluated by a qualified mechanic.
What should I do if my NISSAN FRONTIER shows P0448? ▾
1) Check for recalls on your VIN at nhtsa.gov/recalls. 2) Get a professional diagnosis — a code alone doesn't identify the exact failed part. 3) Get 2-3 repair estimates to compare.

P0448 on Other Vehicles

→ All codes reported on NISSAN FRONTIER