TROUBLESHOOTING (Cont'd) Problem | Possible cause | Remedy | Page Excessive oil consumption | Valve stem and guide worn | Check valves | EM-18 | Valve stem seal worn | Check seals | EM-19 Poor gasoline mileage | Fuel leak | Repair as necessary | | Air cleaner clogged | Check air cleaner | | Incorrect ignition timing | Reset timing | IG-10 | EFI system problems | Repair as necessary | | • Injector faulty | | | • Deceleration fuel cut system faulty | | | Idle speed too high | Check ISC system | FI-60 | Spark plugs faulty | Inspect plugs | IG-5 | EGR system always on | Check EGR system | | Low compression | Check compression | EM-6 | Tires improperly inflated | Inflate tires to proper pressure | | Clutch slips | Troubleshoot clutch | | Brakes drag | Troubleshoot brakes | Unpleasant odor | Incorrect idle speed | Check ISC system | FI-60 | Incorrect ignition timing | Reset timing | IG-10 | Vacuum leaks | Repair as necessary | | • PCV hoses | | | • EGR valve | | | • Intake manifold | | | • Air intake chamber | | | • Throttle body | | | EFI system problems | Repair as necessary |