Toyota T100 1996 Service Manual page 324

DI−60
INSPECTION PROCEDURE
1 Check spark plug and spark of misfiring cylinder.
P03792
P25086
OK
1996 TOYOTA T100 (RM449U)
DIAGNOSTICS − ENGINE (3RZ−FE)
PREPARATION:
(a) Disconnect the high−tension cord.
(b) Remove the spark plug.
CHECK:
(a) Check the carbon deposits electrode.
(b) Check the electrode gap.
OK:
(1) No large carbon deposit present. Not wet with gas-
oline or oil.
(2) Electrode gap: 0.8 mm (0.031 in.)
PREPARATION:
(a) Install the spark plug to the high−tension code.
(b) Disconnect the injector connector.
(c) Ground the spark plug.
CHECK:
Check if the spark occurs while the engine is being craked.
NOTICE:
To prevent excess fuel being injected from the injectors
during this test, don't crank the engine for more than 5 − 10
A00065
seconds at a time.
OK:
Spark jumps across electrode gap.
NG Replace or check ignition system (See page
IG−1).