Precautions; Inspection Precautions - Toyota Land Cruiser 1988 Repair Manual

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EFI SYSTEM -Precautions, Inspection Precautions
Tachometer
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PRECAUTIONS
1. Before working on the fuel system, disconnect
the cable from negative (-) terminal of the bat-
tery.
NOTE: Any diagnostic code retained by the computer
will be erased . when the battery terminal is removed.
Therefore, if necessary, read the diagnosis before remov-
ing the battery terminal.
2. Do not smoke or work on open flame when work-
ing on the fuel system.
3. Keep gasoline off rubber or leather parts.
INSPECTION PRECAUTIONS
MAINTENANCE PRECAUTIONS
1. CHECK CORRECT ENGINE TUNE-UP
(See page EM-6)
2. PRECAUTIONS WHEN CONNECTING GAUGE
(a) Use the battery as the power source for the timing
light, tachometer, etc.
(b) Connectthe test probe of a tachometer to the termi-
naiiG8of the check connector.
3. IN EVENT OF ENGINE MISFIRE FOLLOWING
PRECAUTIONS SHOULD BE TAKEN
4.
(a) Check proper connection of battery terminals, etc.
(b) Handle high-tension cords carefully.
(c) After repair work, check that the ignition coil termi-
nals and all other ignition system lines are recon-
nected securely.
(d) When cleaning the engine compartment, be espe-
cially careful to protect the electrical system from
water.
PRECAUTIONS WHEN HANDLING OXYGEN
SENSORS
(a) Do not allow oxygen sensor to drop or hit against an
object.
(b) Do not allow the sensor to come into contact with
water.