Engine-Codes - Infiniti - P1447 Infiniti

P1447 Infiniti Code - Evaporative Emission Control System Purge Flow Monitor

- Code Popularity: 15,500 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC P1447 Infiniti?

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 purge volume control solenoid valve stuck closed
  • EVAP control system pressure sensor and the circuit
  • Loose, disconnected or improper connection of rubber tube
  • Blocked rubber tube
  • Cracked EVAP canister
  • EVAP canister purge volume control solenoid valve circuit
  • Closed throttle position switch
  • Blocked purge port
  • Closed throttle position switch
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How to Fix the DTC P1447 Infiniti?

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 P1447 Infiniti 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?

Under normal conditions (non-closed throttle), sensor output voltage indicates if pressure drop and purge flow are adequate. If not, a fault is determined. Malfunction is detected when EVAP control system does not operate properly, EVAP control system has a leak between intake manifold and EVAP control system pressure sensor.

What are Code Possible Symptoms?

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

What Does the P1447 Infiniti Code Mean?

In this evaporative emission (EVAP) control system, purge flow occurs during non-closed throttle conditions. Purge volume is related to air intake volume. Under normal purge conditions (non-closed throttle), the EVAP canister purge volume control solenoid valve is open to admit purge flow. Purge flow exposes the EVAP control system pressure sensor to intake manifold vacuum.

P1447 Infiniti Code - Evaporative Emission Control System Purge Flow Monitor

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