P0451 Nissan Xvl OBD Code

OBD/2 P0451 error code description and symptoms.

Engine Coolant Temperature (ECT) Circuit High Input Indicates the sensor signal is greater than Self-Test maximum. The ECT sensor maximum is 4.6 volts or -50 C (-58 F). Note on some vehicles that are not equipped with an ECT sensor, CHT can be used and can set this DTC. Open circuit in harness Sensor signal short to power Damaged PCM Improper harness connection Damaged sensor ECT V PID reading greater than 4.6 volts with key ON and engine OFF or during any engine operating mode indicates a hard fault.

One example of this would be when an automatic vehicle in placed in gear. To prevent the added drag from the torque converter and transmission from reducing the idling speed, the PCM will command the idle control valve to allow more air to enter the engine, while at the same time, adjusting the injector pulse width to inject more fuel to suit the increased amount of air. Note that the idle air control valve is closed by the PCM when the throttle plate is opened to prevent excess air from entering the engine.

P0451 Nissan Xvl Error Code Repair Process :

If your p0451 evaporative emission control system pressure sensor range/performance check engine light is illuminated, it's best to take it in for diagnostic testing, which can feel like a hassle. Because while the lights vary in appearance from vehicle to vehicle, all have the same basic meaning: There's a problem with the car's emissions system. The on-board diagnostics system P0451 and engine control unit are in charge of monitoring a bunch of different p0451 evaporative emission control system pressure sensor range/performance, and if they get a reading that's a little out of whack, up pops the check engine light.

Common Causes of Nissan Xvl P0451 OBD2 Code

A common cause of code P0451 is the failure of P0451 Evaporative Emission Control System Pressure Sensor Range/Performance, but there are several other possible causes as well, such as ;

Engine Control Module (ECM)
Faulty Camshaft Position Sensor
Clogged or faulty fuel injector (s)
1Camshaft Position Sensor circuit poor electrical connection

P0451 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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P0451 Nissan Xvl OBD Code

P0451 Nissan Xvl Error Code Repair Process :

Common Causes of Nissan Xvl P0451 OBD2 Code

P0451 code for other Nissan cars