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Trouble shooting hints
1. In most cases, engine troubles are attributable to systems
other than the EFI system.
(1) Battery voltage, fuse blown or fusible link blown
(2) Body earth
(3) Fuel leakage, fuel filter clogged or fuel pump malfunc-
tioning
(4) Spark plugs faulty, spark plug wires faulty, distributor
faulty, igniter faulty, or ignition timing adjusted improp-
erly
(5) Admission of air
2. Most of troubles related to the EFI system are merely
caused by poor wire connections.
Ensure that connectors are connected securely.
Check connectors, being careful as to the following
points.
(1) Visually inspect that terminals are not bent.
(2) Ensure that connectors are securely connected and
locked.
(3) Check to see if the malfunction phenomenon takes
place when applying light vibration to the connector or
the wire connected to the connector.
3. If engine misfire takes place, the following measures
should be taken.
(1) Ensure that the battery terminals and so forth are con-
nected properly.
(2) Handle the spark plug wires carefully.
(3) After completion of repairs, ensure that the ignition coil
terminals and other ignition system wire are reconnect-
ed securely.
Check to see if diagnosis detects malfunction code.
1. Check of diagnosis code
When the engine starts, the check engine lamp in the
combination meter remains illuminated. It indicates that
the diagnosis has detected system malfunctions.
2. Read out the diagnosis code.
NOTE:
•
See page EF–4.
•
When system malfunction has been detected, proceed
to page EF–18, "TROUBLE SHOOTING ACCORDING
TO DIAGNOSIS SYSTEM".
Check of power supply circuit
1. Check the fuses and fusible link.
If the fuses are blown out, be sure to perform the trouble
shooting.
EF–11
JEF00028-00303
JEF00029-00305
JEF00030-00306
JEF00031-00309
JEF00032-00311
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