Emission Control System
WARNING: This page is about a different car, the 2004 Toyota Celica. However, it is still accessible from the selected car via links, so may be relevant.
The emission control systems are installed to reduce the amount of CO, HC and NOx exhausted from the engine ((3) and (4)), to prevent the atmospheric release of blow-by gas-containing HC (1) and evaporated fuel containing HC being released from the fuel tank (2). The function of each system is shown in these table.
EMISSION CONTROL SYSTEM ABBREVIATION AND FUNCTION
| System | Abbreviation | Function | ||
|---|---|---|---|---|
| (1) Positive Crankcase Ventilation | PCV | Reduces HC | ||
| (2) Evaporative Emission Control | EVAP | Reduces evaporated HC | ||
| (3) Three-way Catalytic Converter | TWC | Reduces HC, CO and NOx | ||
| (4) Sequential Multi-port Fuel Injection(1) | SFI | Injects a precisely timed, optimum amount of fuel for reduced exhaust emissions | ||
Remark:
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