P1131 NISSAN Possible Causes
- Faulty Swirl control valve control solenoid valve
- Swirl control valve control solenoid valve circuit is open or shorted
- Swirl control valve circuit is open or shorted
- Faulty swirl control valve
- Faulty Swirl control valve actuator
How do I fix code P1131 NISSAN
Check 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.
Cost of diagnosing the P1131 NISSAN code
Labor: 1.0The cost of diagnosing the P1131 NISSAN 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.
When is the P1131 NISSAN code detected?The P1131 code is detected when an An improper voltage signal is sent to Engine Control Module (ECM) through swirl control valve control solenoid valve.
P1131 NISSAN Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P1131 NISSAN MeaningThis system has a swirl control valve in the intake passage of each cylinder.
While idling and during low engine speed operation, the swirl control valve closes. Thus the velocity of the air in the intake passage increases, promoting the vaporization of the fuel and producing a swirl in the combustion chamber.
Because of this operation, this system tends to increase the burning speed of the gas mixture, improve fuel consumption, and increase the stability in running conditions.
Also, except when idling and during low engine speed operation, this system opens the swirl control valve. In this condition, this system tends to increase power by improving intake efficiency via reduction of intake flow resistance, intake flow.
The solenoid valve controls swirl control valve’s shut/open condition. This solenoid valve is operated by the Engine Control Module (ECM).
The swirl control valve control solenoid valve responds to signals from the ECM. When the ECM sends an ON (ground) signal, the solenoid valve is bypassed to apply intake manifold vacuum to the swirl control valve actuator. This operation closes the swirl control valve. When the ECM sends an OFF signal, the vacuum signal is cut and the swirl control valve opens.
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