Manual Transaxle

System Diagram (M/T):

The Electronic Fuel Injection system in this vehicle supplies the combustion chambers with air/fuel mixture of optimized ratio under widely varying driving conditions.

It uses the single-point throttle body fuel injection system which injects fuel into the throttle body through one injector.


This system has 2 major sub-systems: air/fuel delivery system and electronic control system. Air/fuel delivery system includes fuel pump, throttle body, etc..

Electronic control system includes ECM, various sensors and controlled devices.


This section explains not only the system related to the electronic fuel injection but also such functions of ECM as listed below.


- EGR control system.

- Shift-Up indicator control system.

- Throttle Valve opening signal for A/T.

NUMBERED COMPONENTS IN ILLUSTRATION
1. Fuel tank
2. Fuel pump
3. Fuel filter
4. Fuel pump relay
5. Fuel injector resistor
6. Fuel injector
7. Fuel pressure regulator
8. Throttle body
9. Pressure sensor
10. WTS
11. Throttle switch
12. Air valve
13. PCV valve
14. Gas filter
15. Intake manifold
16. Exhaust manifold
17. Oxygen sensor
18. Three-way catalyst
19. ATS
20. ISC solenoid valve
21. Air-conditioner VSV (If equipped)
22. Air-conditioner amplifier (If equipped)
23. Distributor
24. Vacuum advancer
25. Idle speed adjusting screw
26. EGR valve (California spec. model only)
27. EGR modulator (California spec. model only)
28. EGR VSV (California spec. model only)
29. BVSV
30. Charcoal canister
31. Diagnosis switch terminal
32. Test switch terminal
33. ECM
34. "CHECK ENGINE" light
35. Shift-up indicator light (If equipped)
36. Ignition coil
37. Speed sensor
38. Electric load signal
^ Radiator fan
^ Heater blower
^ Rear window defogger
^ Stop light
^ Headlight, Small (or clearance) light
39. Control circuit ground
40. Main relay
41. Main switch
42. Clutch switch
43. Starter magnetic switch
44. Main fuse
45. Battery