Components Location |
1. PCV Valve 2. Canister 3. Purge control solenoid valve (PCSV) 4. Fuel tank air filter |
5. Catalytic converter (WCC)
6. Vapor hose (Canister ↔ Intake Manifold) 7. Vapor Hose (Canister ↔ Fuel Tank) 8. Ventilation Hose (Canister ↔ Atmosphere) |
1. PCV valve |
2. Canister 4. Fuel tank air filter |
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3. Purge control solenoid valve (PCSV) |
5. catalytic converter (WCC) |
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6. Vapor hose (Canister ↔ Intake Manifold) 7. Vapor Hose (Canister ↔ Fuel Tank) 8. Ventilation Hose (Canister ↔ Atmosphere) |
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Description |
Emissions Control System consists of three major systems.
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The Crankcase Emission Control System prevents blow-by gas from releasing into the atmosphere. This system recycles gas back into the intake manifold (Closed Crankcase Ventilation Type). |
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The Evaporative Emission Control System prevents evaporative gas from releasing into the atmosphere. This system burns gas at appropriate engine operating condition after gathering it in the canister. |
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The Exhaust Emission Control System converts the three pollutants [hydrocarbons (HC), carbon monoxide (CO), and oxides of nitrogen (NOx)] into harmless substances by using the 3-way catalytic converter. |
Schematic Diagram |
Troubleshooting |
Symptom |
Suspected area |
Engine does not start or struggles to start |
Vapor hose damaged or disconnected |
Engine struggles to start |
Malfunctioning Purge Control Solenoid Valve |
Rough idle or engine stalls |
Vapor hose damaged or disconnected |
Malfunctioning PCV valve |
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Rough idle |
Malfunctioning Evaporative Emission Control System |
Excessive oil consumption |
Positive crankcase ventilation line clogged |