ENGINE CONTROL SYSTEM: Component Parts Location

Fig 1: Engine Control System Component Parts Location

Courtesy of NISSAN NORTH AMERICA, INC.

No.	Component	Function
(1)	IPDM E/R	IPDM E/R control the internal relays and the actuators. Refer to "RELAY CONTROL SYSTEM: SYSTEM DIAGRAM ". When CAN communication with ECM is impossible, IPDM E/R performs fail-safe control. Refer to "FAIL SAFE ".
(2)	ECM	"ECM "
(3)	Mass air flow sensor	"MASS AIR FLOW SENSOR (WITH INTAKE AIR TEMPERATURE SENSOR 1) "
(4)	EVAP service port	When perform the EVAP leak check, positive pressure is delivered to the EVAP system through the EVAP service port. Refer to "INSPECTION "
(5)	Electric throttle control actuator	"ELECTRIC THROTTLE CONTROL ACTUATOR "
(6)	EVAP canister purge volume control solenoid valve	"EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE "
(7)	Refrigerant pressure sensor	"REFRIGERANT PRESSURE SENSOR "
(8)	Supercharger bypass valve control motor relay	"SUPERCHARGER BYPASS VALVE CONTROL ACTUATOR "
(9)	Cooling fan relay	"COOLING FAN CONTROL MODULE "

Fig 2: Identifying Engine Control System Components

Courtesy of NISSAN NORTH AMERICA, INC.

No.	Component	Function
(1)	Exhaust valve timing control position sensor	"EXHAUST VALVE TIMING CONTROL POSITION SENSOR "
(2)	Camshaft position sensor	"CAMSHAFT POSITION SENSOR "
(3)	Fuel rail pressure sensor	"FUEL RAIL PRESSURE SENSOR "
(4)	Fuel injector	"FUEL INJECTOR "
(5)	Crankshaft position sensor	"CRANKSHAFT POSITION SENSOR "
(6)	Knock sensor	"KNOCK SENSOR "
(7)	Engine oil temperature sensor	"ENGINE OIL TEMPERATURE SENSOR "
(8)	Engine oil pressure sensor	"ENGINE OIL PRESSURE SENSOR "
(9)	Intake valve timing intermediate lock control solenoid valve	"INTAKE VALVE TIMING INTERMEDIATE LOCK CONTROL SOLENOID VALVE "
(10)	Intake valve timing control solenoid valve	"INTAKE VALVE TIMING CONTROL SOLENOID VALVE "
(11)	Exhaust valve timing control solenoid valve	"EXHAUST VALVE TIMING CONTROL SOLENOID VALVE "
(12)	PCV valve	The positive crankcase ventilation valve (PCV valve) is provided to conduct crankcase blow-by gas to the intake manifold.
(13)	Ignition coil (with power transistor)	"IGNITION COIL (WITH POWER TRANSISTOR) "
(14)	Engine coolant temperature sensor	"ENGINE COOLANT TEMPERATURE SENSOR "
(15)	Charge air cooler temperature sensor	"CHARGE AIR COOLER TEMPERATURE SENSOR "
(16)	EVAP canister purge volume control solenoid valve	"EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE "
(17)	Intake air temperature sensor 2	"SUPERCHARGER BOOST SENSOR (WITH INTAKE AIR TEMPERATURE SENSOR 2) "
(18)	Electric throttle control actuator	"ELECTRIC THROTTLE CONTROL ACTUATOR "
(19)	Intake manifold runner control valve actuator	"INTAKE MANIFOLD RUNNER CONTROL VALVE "
(20)	Supercharge	"SUPERCHARGER "
(21)	Supercharger bypass valve control actuator	"SUPERCHARGER BYPASS VALVE CONTROL ACTUATOR "
(22)	Relief valve	"RELIEF VALVE "
(23)	Intake manifold runner control valve position sensor	"INTAKE MANIFOLD RUNNER CONTROL VALVE "

Fig 3: Connecting Exhaust Pipe To Engine Assembly

Courtesy of NISSAN NORTH AMERICA, INC.

No.	Component	Function
(1)	Air fuel ratio sensor 1	"AIR FUEL RATIO SENSOR 1 "
(2)	Heated oxygen sensor 2	"HEATED OXYGEN SENSOR 2 "
(3)	Exhaust gas temperature sensor	"EXHAUST GAS TEMPERATURE SENSOR "

Fig 4: Identifying Front Side Of Engine Room Related Components (Cooling Fan Assembly)

Courtesy of NISSAN NORTH AMERICA, INC.

No.	Component		Function
(1)	A/C auto amp.		ECM transmits/receives signals with A/C amp. via CAN communication line to engine control. The detailed installation location. Refer to "FRONT AUTOMATIC AIR CONDITIONING SYSTEM: COMPONENT PARTS LOCATION ".
(2)	Combination meter	Malfunction indicator lamp (MIL)	"MALFUNCTION INDICATOR LAMP "
(2)	Combination meter	Engine oil pressure warning lamp	"ENGINE OIL PRESSURE WARNING LAMP "
(3)	Drive mode select switch		"DRIVE MODE SELECT SWITCH "
(4)	Cooling fan control module		"COOLING FAN CONTROL MODULE "
(5)	Cooling fan motor		"COOLING FAN MOTOR "
(6)	Front electronic controlled engine mount		"ELECTRONIC CONTROLLED ENGINE MOUNT "
(7)	Rear electronic controlled engine mount		"ELECTRONIC CONTROLLED ENGINE MOUNT "
(8)	Fuel level sensor and fuel pump (with fuel tank temperature sensor)		"FUEL LEVEL SENSOR AND FUEL PUMP (WITH FUEL TANK TEMPERATURE SENSOR) "
(9)	Fuel pump control module		"FUEL PUMP CONTROL MODULE "
(10)	EVAP control system pressure sensor		"EVAP CONTROL SYSTEM PRESSURE SENSOR "
(11)	EVAP canister vent control valve		"EVAP CANISTER VENT CONTROL VALVE "
(12)	EVAP canister		"EVAP CANISTER "
(13)	Engine mount control module		"ENGINE MOUNT CONTROL MODULE "
(14)	Fuse box (Engine mount control module fuse)		-
(15)	Stop lamp switch		"STOP LAMP SWITCH "
(16)	Brake pedal position switch		"BRAKE PEDAL POSITION SWITCH "