Sign | Probable Cause | Remedy |
| The engine does not start or starts with difficulty | Disconnected or damaged vacuum hoses | Repair or replace vacuum hoses |
| Malfunctions of the valve of system EVAP | Repair or replace the valve of system EVAP |
| Unstable work of the engine at idle until it stops | Disconnected or damaged vacuum hoses | Repair or replace vacuum hoses |
| Malfunctions of the crankcase ventilation valve | Repair or replace the valve crankcase breather |
| Malfunctions of the valve of system EVAP | Repair or replace the valve of system EVAP |
| Increased oil consumption | Clogged PCV | Check and, if necessary, clean the elements of the crankcase ventilation system |