Engine will not start or hard to start

Vacuum hose disconnected or damaged

Repair or replace

Malfunction of the Purge Control Solenoid Valve

Repair or replace

Rough idle or engine stalls

Vacuum hose disconnected or damaged

Repair or replace

Malfunction of the PCV valve

Replace

Malfunction of the evaporative emission canister purge system

Check the system; if there is a problem, check related components parts

Excessive oil consumption

Positive crankcase ventilation line clogged

Check positive crankcase ventilation system