P0448
Low SeverityEVAP Vent Control Circuit Shorted
EVAP System
What Does P0448 Mean?
Short circuit in the vent valve.
Common Fix
Replace vent valve
Estimated Cost (DIY)
$20 - $60
Common Causes
How to Diagnose P0448
- 1Check wiring
- 2Replace valve
OEM Diagnostic Flowchart
Scroll to load technician if/then branches.
Read live data and freeze frame for P0448 to pinpoint the cause before buying parts.
Related Resources
Repair guides, symptom pages, and wiring diagrams related to P0448.
OEM Manual Evidence
Browse →A L L Diagnostic Trouble Codes ( DTC ) — 2013 Nissan-Datsun Truck Rogue 4WD L4-2.5L (QR25DE) Service Manual | Operation CHARM Operation CHA...
A L L Diagnostic Trouble Codes ( DTC ) — 2013 Nissan-Datsun Truck Rogue 2WD L4-2.5L (QR25DE) Service Manual | Operation CHARM Operation CHA...
A L L Diagnostic Trouble Codes ( DTC ) — 2013 Infiniti G37 Convertible V6-3.7L (VQ37VHR) Service Manual | Operation CHARM Operation CHARM :...
A L L Diagnostic Trouble Codes ( DTC ) — 2013 Infiniti G37 Coupe V6-3.7L (VQ37VHR) Service Manual | Operation CHARM Operation CHARM : Car r...
Related Symptoms
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Open the exact vehicle hub grounded by OEM manual evidence related to P0448.
Open the exact vehicle hub grounded by OEM manual evidence related to P0448.
Open the exact vehicle hub grounded by OEM manual evidence related to P0448.
Related Codes
Frequently Asked Questions
- What happens if the vent valve is stuck closed?
- The fuel tank cannot breathe properly, potentially causing pressure buildup or vacuum in the tank.
- Can a vent valve cause hard fueling?
- Yes — if the vent valve is stuck, the tank builds pressure, and the fuel pump nozzle clicks off repeatedly at the gas station.