What does code P1165 mean on Infiniti vehicles?
The ECU detects a malfunction in the vacuum check switch for the swirl control valve.
OBD-II Code Infiniti
P1165 — Infiniti — Swirl Control Valve Vacuum Check Switch Malfunction
The ECU detects a malfunction in the vacuum check switch for the swirl control valve.
Common symptoms
- Loss of power
Possible causes
- Insufficient vacuum supply
- faulty vacuum switch
Initial recommendation
Inspect vacuum lines and swirl control vacuum switch operation.
Safety notice
This information is for guidance only. Brand-specific codes may vary by model, year, engine, transmission and vehicle configuration. It does not replace a physical inspection or diagnosis by a qualified mechanic. If the vehicle is unsafe to operate, avoid driving it and seek professional inspection.
Analyze this code with MecaOBD
Use the app to combine Infiniti code P1165 with your vehicle's actual symptoms for more complete diagnostic guidance.
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