P1391 – Infiniti DTC

Infiniti DTC P1391 – G Sensor Performance

DTC P1391 meaning on Infiniti

1. DTC P1391 on an Infiniti indicates an issue with the G Sensor performance.

Infiniti DTC P1391 symptoms

• Check Engine Light (CEL) illuminated on the dashboard.
• Vehicle may exhibit drivability issues such as rough idling or poor acceleration.

Infiniti DTC P1391 causes

• Malfunctioning G Sensor.
• Wiring or connector issues related to the G Sensor.
• Interference from other electronic components.

Infiniti DTC P1391 seriousness

1. If left unresolved, DTC P1391 can lead to further drivability issues and potential damage to the vehicle.

How to diagnose DTC P1391 on Infiniti

1. Use a diagnostic scanner to retrieve the trouble codes and perform a thorough inspection of the G Sensor and related components.
2. Check the wiring and connectors for any signs of damage or corrosion.
3. Test the G Sensor for proper functionality using a multimeter or oscilloscope.

How to fix DTC P1391 on Infiniti

1. Replace the faulty G Sensor if it is determined to be the cause of the issue.
2. Repair or replace any damaged wiring or connectors associated with the G Sensor.
3. Clear the trouble codes using a diagnostic scanner after the repairs have been completed.

How to erase DTC P1391 on Infiniti

1. Use a diagnostic scanner to clear the trouble codes stored in the vehicle’s computer.
2. Follow the scanner’s instructions to erase the DTC P1391 code from the system.