Engine-Codes - Infiniti - P1443 INFINITI

P1443 INFINITI - Evaporative Emission Control System Control Valve

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What is this?
Table of contents

P1443 INFINITI Possible Causes

  • Faulty Throttle Position Sensor
  • Faulty Engine Coolant Temperature Sensor
  • Faulty EVAP Canister Purge Control Solenoid Valve
  • EVAP Canister Purge Control Solenoid Valve harness is open or shorted
  • EVAP Canister Purge Control Solenoid Valve circuit poor electrical connection

How is the P1443 INFINITI code repair?

Start by checking 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's pins.

What is the cost to diagnose the P1443 INFINITI code

Labor: 1.0

The cost to diagnose the P1443 INFINITI code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.
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Possible Symptoms

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

P1443 INFINITI Meaning

The canister control vacuum check switch is installed in the vacuum line between EVAP canister purge control solenoid valve and EVAP canister purge control valve (built into EVAP canister). The switch detects vacuum signal to the EVAP canister purge control valve and send an "ON" or "OFF" signal to the ECM. When no vacuum is supplied to the valve, the canister control vacuum check switch sends and "ON" signal to the ECM. When vacuum is supplied to the valve, canister control vacuum check switch sends "OFF" signal to the ECM.
The canister control vacuum check switch is not used to control the engine system. It is used only for on board diagnosis.

More Information

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