P1165 – Nissan DTC

Nissan DTC P1165 – Swirl Control Valve Control Vacuum Switch

DTC P1165 meaning on Nissan

DTC P1165 for Nissan refers to the Swirl Control Valve Control Vacuum Switch Circuit. This diagnostic trouble code indicates an issue with the vacuum switching valve that controls the operation of the swirl control valve in the intake manifold.

Nissan DTC P1165 symptoms

Symptoms of DTC P1165 on a Nissan may include:

• Check Engine Light illuminated
• Engine running rough
• Reduced engine performance
• Possible stalling or hesitation

Nissan DTC P1165 causes

Common causes of DTC P1165 on a Nissan include:

• Defective swirl control valve control vacuum switch
• Wiring or connector issues in the vacuum switch circuit
• Vacuum leaks in the intake system

Nissan DTC P1165 seriousness

The seriousness of DTC P1165 on a Nissan depends on the underlying cause. Ignoring this code can lead to poor engine performance and potential drivability issues. It is recommended to address this code promptly to prevent further damage.

How to diagnose DTC P1165 on Nissan

To diagnose DTC P1165 on a Nissan, follow these steps:

1. Use a scan tool to retrieve the trouble codes and freeze frame data.
2. Inspect the swirl control valve control vacuum switch and related wiring for any visible damage.
3. Check for vacuum leaks in the intake system.
4. Perform a vacuum pressure test to verify proper operation of the vacuum switch.

How to fix DTC P1165 on Nissan

To fix DTC P1165 on a Nissan, consider the following:

1. Replace the swirl control valve control vacuum switch if faulty.
2. Repair any damaged wiring or connectors in the vacuum switch circuit.
3. Address any vacuum leaks in the intake system.
4. Clear the trouble codes and test drive the vehicle to verify the repair.

How to erase DTC P1165 on Nissan

To erase DTC P1165 on a Nissan:

1. Use a scan tool to clear the trouble codes from the vehicle’s computer.
2. Ensure the repair has been completed successfully before clearing the codes.
3. Perform a final check to confirm the code has been erased.

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