P1165 – Infiniti DTC

Infiniti DTC P1165 – Swirl Control Valve Control Vacuum Check Switch

DTC P1165 meaning on Infiniti

The DTC P1165 on an Infiniti refers to the Swirl Control Valve Control Vacuum Check Switch. This diagnostic trouble code indicates a malfunction related to the operation of the swirl control valve system.

Infiniti DTC P1165 symptoms

Common symptoms associated with DTC P1165 on an Infiniti may include:

  • Check Engine Light illuminated on the dashboard
  • Reduced engine performance
  • Engine hesitation or stalling

Infiniti DTC P1165 causes

The potential causes of DTC P1165 on an Infiniti can include:

  • Malfunctioning swirl control valve
  • Defective vacuum check switch
  • Vacuum leaks in the swirl control valve system

Infiniti DTC P1165 seriousness

While DTC P1165 may not cause immediate drivability issues, it is important to address this code promptly to prevent potential engine performance issues and further damage to the vehicle.

How to diagnose DTC P1165 on Infiniti

To diagnose DTC P1165 on an Infiniti, a mechanic may perform the following steps:

  1. Use a diagnostic scanner to retrieve the trouble codes
  2. Inspect the swirl control valve and vacuum check switch for proper operation
  3. Check for vacuum leaks in the system

How to fix DTC P1165 on Infiniti

To fix DTC P1165 on an Infiniti, the following steps may be taken:

  1. Replace the malfunctioning swirl control valve or vacuum check switch
  2. Repair any vacuum leaks in the system
  3. Clear the trouble codes from the vehicle’s computer

How to erase DTC P1165 on Infiniti

To erase DTC P1165 on an Infiniti, a mechanic can use a diagnostic scanner to clear the trouble codes stored in the vehicle’s computer. Once the issue has been addressed and fixed, the codes can be cleared to reset the Check Engine Light.

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