System Introduction

Engine And Emission Control Overall System:

SYSTEM DIAGRAM






CIRCUIT DIAGRAM






VACUUM HOSE DRAWING
1. EVAP Canister Purge Volume Control Valve to Intake Manifold Collector.
2. EVAP Canister Purge Control Valve to Vacuum Gallery A.
3. Intake Manifold Collector to Vacuum Gallery A.
4. Vacuum Gallery A to Vacuum Gallery B.
5. EGR Valve to EGRC-BPT Valve.
6. Air Duct to Vacuum Gallery A.
7. Intake Manifold Collector to Vacuum Gallery B.
8. MAP/BARO Switch Solenoid Valve to Vacuum Gallery B.
9. EVAP Canister Purge Control Solenoid Valve to Vacuum Gallery B.
10. MAP/BARO Switch Solenoid Valve to Absolute Pressure Sensor.
11. EVAP Canister Purge Control Solenoid Valve to Check Valve.
12. MAP/BARO Switch Solenoid Valve to Vacuum Gallery B.
13. EVAP Canister Purge Control Solenoid Valve to Vacuum Gallery B.
14. EGRC Solenoid Valve to Vacuum Gallery B.
15. EGRC Solenoid Valve to Vacuum Gallery B.
16. EGRC Solenoid Valve to Vacuum Gallery B.
17. Fuel Pressure Regulator to Vacuum Gallery A.
18. Check Valve to Vacuum Gallery A.






SYSTEM CHART


INTRODUCTION
The engine has an ECM to control major systems such as fuel control, ignition control, idle air control system, etc. The ECM accepts input signals from sensors and instantly drives actuators. It is essential that both input and output signals are proper and stable.