Emission Control System - General Information (Except HEV): 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 | |
| PCV hose damaged or disconnected | |
| Rough idle | Malfunctioning Evaporative Emission Control System |
| Excessive oil consumption | Positive crankcase ventilation line clogged |