Service Repair Manual

TROUBLESHOOTING
When checking and correcting engine troubles, it is important
to start with an inspection of the basic systems. If one of the
following conditions exists, (A) engine start failure, (B) unstable
idling or (C) poor acceleration, begin ‘by checking the following
basic systems.
1. Power supply
1) Battery
2) Fusible link
3) Fuse
2. Body ground
3. Fuel supply
1) Fuel line
2) Fuel filter
3) Fuel pump
4. Ignition system
1) Spark plugs
2) High-tension cables
3) Distributor
4) Ignition coil
5. Emission control system
1) PCV system
2) EGR system
3) Vacuum leak
6. Others
1) Ignition timing
2) Idle speed
Troubles with the MPI system are often caused by poor
contact of the harness connectors. It is important to check
all harness connectors and verify that they are securely
connected.
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