A00164
P03792
P22893
DI
−
56
−
DIAGNOSTICS
ENGINE
1996 LAND CRUISER (RM451U)
INSPECTION PROCEDURE
1
Check spark plug and spark of misfiring cylinder.
PREPARATION:
(a)
Remove No.2 and No.3 cylinder head cover.
(b)
Disconnect the high
−
tension cord from spark plug.
(c)
Remove spark plug.
CHECK:
(a)
Check the carbon deposits on electrode.
(b)
Check electrode gap.
OK:
(1) No large carbon deposit present.
Not wet with gasoline or oil.
(2) Electrode gap: 0.8 mm (0.031 in.).
PREPARATION:
(a)
Install the spark plug to the high
−
tension cord.
(b)
Ground the spark plug.
(c)
Disconnect injector connector.
CHECK:
Check if spark occurs while engine is being cranked.
NOTICE:
To prevent excess fuel being injected from the injectors
during this test, don’t crank the engine for more than 5
−
10
seconds at a time.
OK:
Spark jumps across electrode gap.
NG
Replace or check ignition system (See page
IG
−
1
).
OK
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Version 1.00 - 12/21/2010