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Home >> Nissan-Datsun >> 2022 >> Altima S >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System (Pr25DD) (1 Of 3) >> System Description >> System >> Engine Control System >> System Description >> PR25DD engine
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PR25DD engine

SYSTEM DIAGRAM 

GNSILL0191125Courtesy of NISSAN NORTH AMERICA, INC.

Component parts

Function

Accelerator pedal position sensor

Accelerator Pedal Position Sensor 

Air fuel ratio (A/F) sensor 1

Air Fuel Ratio (A/F) Sensor 1 

ASCD steering switch

Steering Switch 

ICC steering switch

Battery current sensor (With battery temperature sensor)

Battery Current Sensor (With Battery Temperature Sensor) 

Cooling fan

Cooling Fan 

Crankshaft position sensor

Crankshaft Position Sensor 

ECM

ECM 

EGR system

System Description .

EGR volume control valve

EGR Volume Control Valve 

Electric intake valve timing control actuator

Electric Intake Valve Timing Control Actuator 

Electric intake valve timing control module

Electric Intake Valve Timing Control Module 

Electric throttle control actuator

Electric Intake Valve Timing Control Actuator 

Engine coolant temperature sensor

Engine Coolant Temperature Sensor 

Engine oil pressure sensor

Engine Oil Pressure Sensor 

Engine oil pressure control solenoid valve

Engine Oil Pressure Control Solenoid Valve 

Engine oil pressure control system

System Description 

Engine oil temperature sensor

Engine Oil Temperature Sensor 

EVAP canister

EVAP Canister 

EVAP canister purge volume control solenoid valve

EVAP Canister Purge Volume Control Solenoid Valve 

EVAP canister vent control valve

EVAP Canister Vent Control Valve .

EVAP control system pressure sensor

EVAP Control System Pressure Sensor 

Exhaust camshaft position sensor

Exhaust Camshaft Position Sensor .

Exhaust valve timing control solenoid valve

Exhaust Valve Timing Control Solenoid Valve 

Exhaust valve timing intermediate lock control solenoid valve

Exhaust Valve Timing Intermediate Lock Control Solenoid Valve 

Fuel injector

Fuel Injector 

Fuel level sensor unit and fuel pump

Fuel Level Sensor Unit And Fuel Pump .

Fuel pressure control

System Description 

Fuel rail pressure sensor

Fuel Rail Pressure Sensor 

Fuel tank temperature sensor

Fuel Tank Temperature Sensor 

Heated oxygen sensor 2

Heated Oxygen Sensor 2 

High pressure fuel pump

High Pressure Fuel Pump 

Ignition coil with power transistor

Ignition Coil With Power Transistor 

Intake camshaft position sensor

Intake Camshaft Position Sensor 

Intake manifold runner control valve

Intake Manifold Runner Control Valve 

Intake manifold tuning valve

Intake Manifold Tuning Valve 

Knock sensor

Knock Sensor 

Malfunction indicator lamp (MIL)

Malfunction Indicator Lamp (MIL) 

Manifold absolute pressure sensor

Manifold Absolute Pressure Sensor 

Mass air flow sensor

(With intake air temperature sensor)

Mass Air Flow Sensor (With Intake Air Temperature Sensor) 

Power generation voltage variable control system

System Description 

Refrigerant pressure sensor

Refrigerant Pressure Sensor 

Stop lamp switch

Stop Lamp Switch And Brake Pedal Position Switch 

Brake pedal position switch

SYSTEM DESCRIPTION 

ECM controls the engine by various functions.

Function

Reference

Dig (direct injection gasoline) system

System Description 

Electric ignition system

System Description 

Intake valve timing control

System Description 

Exhaust valve timing control

System Description 

Intake manifold runner control

System Description 

Intake manifold tuning system

System Description 

Engine protection control

System Description 

Fuel filler cap warning system

System Description 

Air conditioning cut control

System Description 

Cooling fan control

System Description 

Evaporative emission system

System Description 

Automatic speed control device (ASCD)

System Description 

CAN communication

System Description 

Active grille shutter system

Refer to System Description .