Engine-Codes - Nissan - P1448 2003 Nissan Sentra

P1448 2003 Nissan Sentra Code - EVAP Canister Vent Control Valve Open

- Code Popularity: 8,403 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC P1448 2003 Nissan Sentra?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • EVAP canister vent control valve
  • EVAP canister is saturated with water
  • EVAP control system pressure sensor and the circuit
  • Blocked rubber tube to EVAP canister vent control valve
  • Water separator

Code Tech Notes

Start by checking for damage EVAP canister or hoses. If no hoses are damage the EVAP canister vent control valve may have to be replaced.

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How to Fix the DTC P1448 2003 Nissan Sentra?

Check the 'Possible Causes' listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

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What is the Cost to Diagnose the Code?

Labor: 1.0

The cost to diagnose the P1448 2003 Nissan Sentra code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.

When is the Code Detected?

EVAP canister vent control valve remains open under specified driving conditions.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

What Does the P1448 2003 Nissan Sentra Code Mean?

The EVAP canister vent control valve is located on the EVAP canister and is used to seal the canister vent.
This solenoid valve responds to signals from the Engine Control Module (ECM). When the ECM sends an ON signal, the coil in the solenoid valve is energized. A plunger will then move to seal the canister vent. The ability to seal the vent is necessary for the on board diagnosis of other evaporative emission control system components.
This solenoid valve is used only for diagnosis, and usually, remains opened. When the vent is closed, under normal purge conditions, the evaporative emission control system is depressurized and allows EVAP Control System (Small Leak)diagnosis.

P1448 2003 Nissan Sentra Code - EVAP Canister Vent Control Valve Open

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