P3851 Nissan Az-1 OBD Code

OBD/2 P3851 error code description and symptoms.

Variable Cam Timing Over-advanced (Bank 1) The comprehensive component monitor (CCM) monitors the VCT position for an over-advanced camshaft timing.
The test fails when the camshaft timing exceeds a maximum calibrated value or remains in an advanced position. Cam timing improperly set No oil flow to the VCT piston chamber Low oil pressure VCT solenoid valve stuck closed Camshaft advance mechanism binding (VCT unit) P3851 DTC is a check of the VCT unit.

As the engine heats up and combustion becomes easier and more complete, the PCM will command the idling control valve to increase the amount of air entering the engine to suit the changing conditions. However, when the load on the engine changes, say, when some electrical consumers or other systems are either turned on or off, the PCM adapts the signal voltage to the idle control valve to ensure that the idling speed remains stable, and at the RPM specified by the manufacturer.

P3851 Nissan Az-1 Error Code Repair Process :

When you turn on the ignition, the Service Engine Soon or Check Engine P3851 light should flash briefly, indicating that the OBD system is ready to scan your vehicle for any malfunctions. After this brief flash, the light should stay off while you drive as long as no problems are detected. If air suspension rf air spring solenoid output circuit failure so, you'll be glad to know that your vehicle is equipped with an early warning system that could save you time, money, and fuel in addition to helping protect the air suspension rf air spring solenoid output circuit failure.

Common Causes of Nissan Az-1 P3851 OBD2 Code

A common cause of code P3851 is the failure of Air Suspension RF Air Spring Solenoid Output Circuit Failure, but there are several other possible causes as well, such as ;

Camshaft advance mechanism binding (VCT unit)
Faulty front heated oxygen sensor
1Camshaft Position Sensor circuit poor electrical connection
Fuel injector leaks

P3851 is a kind of Powertrain Trouble Code

Powertrain of a modern automobile, comprising engine (with exhaust system), transmission, drive shaft, suspension and the wheels. In a motor vehicle, the term powertrain or powerplant describes the main components that generate power and deliver it to the road surface, water, or air.

Engine OBD 2 Codes website is a freeware resource center for engine trouble codes.

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P3851 Nissan Az-1 OBD Code

P3851 Nissan Az-1 Error Code Repair Process :

Common Causes of Nissan Az-1 P3851 OBD2 Code

P3851 code for other Nissan cars