LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Infiniti >> 2017 >> Q70L 3.7, AWD >> Repair and Diagnosis (Single Page) >> Engine Performance >> Testing & Diagnosis >> Engine Control System (Introduction) (VQ37VHR) (Except Hybrid) >> System Description >> System >> Engine Control System >> System Diagram
April 5, 2026: LEMON Manuals is launched! Read the announcement.

System Diagram

GNSJSBIA0494ZZ-494Courtesy of NISSAN NORTH AMERICA, INC.
1. ECM 2. Can communication 3. VVEL control module
4. EVAP canister purge volume control solenoid valve 5. EVAP service port 6. EVAP canister vent control valve
7. EVAP control system pressure sensor 8. EVAP canister 9. Battery current sensor (with Battery temperature sensor)
10. Battery 11. Fuel tank temperature sensor 12. Fuel level sensor
13. Fuel tank 14. Fuel pressure regulator 15. Fuel pump
16. Three way catalyst 2 17. Heated oxygen sensor 2 18. Three way catalyst 1
19. Engine oil temperature sensor 20. A/F sensor 1 21. Spark plug
22. PCV valve 23. Ignition coil (with power transistor) 24. VVEL actuator motor
25. VVEL control shaft position sensor 26. Intake valve timing control solenoid valve 27. Camshaft position sensor (PHASE)
28. Fuel damper 29. Engine coolant temperature sensor 30. Knock sensor
31. Crankshaft position sensor (POS) 32. Muffler 33. Cooling fan control module
34. Cooling fan 35. Air cleaner 36. Mass air flow sensor (with intake air temperature sensor)
37. Electric throttle control actuator 38. Throttle position sensor 39. Manifold absolute pressure (MAP) sensor
40. MIL 41. Ignition switch 42. Accelerator pedal position sensor
43. Power steering pressure sensor 44. Refrigerant pressure sensor 45. PNP signal