EMISSION CONTROL SYSTEM SYSTEM DIAGRAM
| *1 | Engine | *2 | Exhaust Manifold |
| *3 | Turbocharger Sub-assembly | *4 | EGR Passage in Cylinder Head |
| *5 | Injector Assembly | *6 | Glow Plug Assembly |
| *7 | Injector Driver | *8 | Glow Plug Controller |
| *9 | EGR Pipe Sub-assembly | *10 | Bypass Passage |
| *11 | EGR Cooler | *12 | No. 2 EGR Valve Assembly |
| *13 | EGR Cooler Bypass Switching Valve | *14 | Actuator for EGR Cooler Bypass Switching Valve |
| *15 | VSV (for EGR Cooler Bypass Switching Valve) | *16 | Vacuum Pump |
| *17 | EGR Valve | *18 | EGR Valve Position Sensor |
| *19 | DC Motor for EGR Valve Control | *20 | Throttle Position Sensor |
| *21 | Diesel Throttle Valve | *22 | Throttle Control Motor |
| *23 | Exhaust Fuel Addition Injector Assembly | *24 | Oxidation Catalyst |
| *25 | Diesel Particulate Filter (DPF) Catalyst | *26 | Exhaust Gas Temperature Sensor (Before Oxidation Catalyst) |
| *27 | Exhaust Gas Temperature Sensor (Before DPF Catalyst) | *28 | Exhaust Gas Temperature Sensor (After DPF Catalyst) |
| *29 | Differential Pressure Sensor | *30 | Air Fuel Ratio Sensor |
| *31 | ECM | *32 | Atmospheric Pressure Sensor |
| *33 | Crank Position Sensor | *34 | Accelerator Pedal Position Sensor |
| *35 | Engine Coolant Temperature Sensor | *36 | Turbo Pressure Sensor |
| *37 | Intake Air Temperature Sensor | *38 | Intake Mass Air Flow Meter Sub-assembly |
| *39 | Combination Meter Assembly | - | - |
 |
Exhaust Gas |  |
Intake Air |
| *1 | Engine | *2 | EGR Passage in Cylinder Head |
| *3 | Exhaust Manifold | *4 | Oxidation Catalyst |
| *5 | Electric EGR Control Valve Assembly | *6 | EGR Valve Position Sensor |
| *7 | EGR Valve | *8 | No. 2 EGR Valve Assembly |
| *9 | EGR Cooler Bypass Switching Valve | *10 | Actuator for EGR Cooler Bypass Switching Valve |
| *11 | EGR Pipe Sub-assembly | *12 | Bypass Passage |
| *13 | EGR Cooler | *14 | VSV (for EGR Cooler Bypass Switching Valve) |
| *15 | Vacuum Damper | *16 | VSV (for EGR Valve Close) |
| *17 | Throttle Position Sensor | *18 | Diesel Throttle Valve |
| *19 | Throttle Control Motor | *20 | Vacuum Pump |
| *21 | E-VRV (for EGR Valve Control) | *22 | ECM |
| *23 | Atmospheric Pressure Sensor | *24 | Crank Position Sensor |
| *25 | Accelerator Pedal Position Sensor | *26 | Engine Coolant Temperature Sensor |
| *27 | Turbo Pressure Sensor | *28 | Intake Air Temperature Sensor |
| *29 | Intake Mass Air Flow Meter Sub-assembly | - | - |
| |
Exhaust Gas | |
Intake Air |
| *A | Models Compliant with EURO 2 Emission Regulations | - | - |
| *1 | Engine | *2 | EGR Passage in Cylinder Head |
| *3 | Exhaust Manifold | *4 | Oxidation Catalyst |
| *5 | Electric EGR Control Valve Assembly | *6 | EGR Valve |
| *7 | EGR Pipe Sub-assembly | *8 | Vacuum Damper |
| *9 | VSV (for EGR Valve Close) | *10 | Throttle Position Sensor |
| *11 | Diesel Throttle Valve | *12 | Throttle Control Motor |
| *13 | Vacuum Pump | *14 | E-VRV (for EGR Valve Control) |
| *15 | ECM | *16 | Atmospheric Pressure Sensor |
| *17 | Crank Position Sensor | *18 | Accelerator Pedal Position Sensor |
| *19 | Engine Coolant Temperature Sensor | *20 | Turbo Pressure Sensor |
| *21 | Intake Air Temperature Sensor | *22 | Intake Mass Air Flow Meter Sub-assembly |
| |
Exhaust Gas | |
Intake Air |