Nissan Altima L32. Manual - part 484

ENGINE CONTROL SYSTEM

EC-1057

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FUNCTION DIAGNOSIS

ENGINE CONTROL SYSTEM

System Diagram

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JMBIA1136GB

EC-1058

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ENGINE CONTROL SYSTEM

System Description

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ECM performs various controls such as fuel injection control and ignition timing control.

Component Parts Location

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1.

Power valve actuator 1

2.

Intake valve timing control solenoid 
valve (bank 1)

3.

Power steering pressure sensor

4.

Intake valve timing control solenoid 
valve (bank 2)

5.

VIAS control solenoid valves 1 and 2 6.

Fuel injector (bank 2)

7.

Ignition coil (with power transistor) 
and spark plug (bank 2)

8.

Crankshaft position sensor (POS)

9.

Engine coolant temperature sensor

10. Camshaft position sensor (PHASE) 

(bank 2)

11. ECM

12. Refrigerant pressure sensor

13. Battery current sensor

14. PNP switch

15. Condenser-2

16. Mass air flow sensor (with intake air 

temperature sensor)

17. EVAP service port

18. Camshaft position sensor (PHASE) 

(bank 1)

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ENGINE CONTROL SYSTEM

EC-1059

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19. Electric throttle control actuator

20. Power valve actuator 2

21. EVAP canister purge volume control 

solenoid valve

22. Ignition coil (with power transistor) 

and spark plug (bank 1)

23. Knock sensor

1.

Mas air flow sensor (with intake air 
temperature sensor)

2.

Air cleaner case

3.

Engine coolant temperature sensor

4.

EVAP canister purge volume control 
solenoid valve

5.

Power valve actuator 1

6.

VIAS control solenoid valve 1

7.

VIAS control solenoid valve 2

8.

Power valve actuator 2

9.

Power steering pressure sensor

10. Tie rod (RH)

11. Power valve actuator 2

12. Camshaft position sensor (PHASE) 

(bank 1)

13. Camshaft position sensor (PHASE) 

(bank 2)
: Vehicle front

ALBIA0101ZZ

EC-1060

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ENGINE CONTROL SYSTEM

JMBIA1832GB

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