Diagnostic Strategies

TROUBLESHOOTING
When checking and correcting engine troubles, it is important to start with inspection of the basic Systems
In case you have such troubles as (1) engine start failure, (2) rough idling or (3) poor acceleration, therefore, you should first check the following basic systems:

(1) Power supply
- Battery
- Fusible link
- Fuse
(2) Body ground
(3) Fuel supply
- Fuel line
- Fuel filter
- Fuel pump
(4) Ignition system
- Spark plug
- High tension cable
- Distributor
- Ignition coil
(5) Emission control system
- PCV system
- EGR system
- Vacuum leak
(6) Others
- Ignition timing
- Idle speed

Troubles with the MPI system are often caused by poor contact of harness connector. It is, therefore, important to check harness connector contact.