Check That Spark Occurs - Toyota 22R-E Service Manual

IG–18
SPARK TEST
CHECK CONNECTION OF IGNITION COIL, IG-
NITER AND DISTRIBUTOR CONNECTOR
CHECK RESISTANCE OF HIGH–TENSION CORD
(See page IG–19)
Maximum resistance: 25 kW per cord
CHECK POWER SUPPLY TO IGNITION COIL AND
IG NITER .
1. Turn ignition switch to ON. –
2. Check that there is battery voltage at ignition coil
positive (+) terminal.
CHECK RESISTANCE OF IGNITION COIL
(See page IG–22)
Resistance: (Cold)
Primary 0.36 – 0.55W
Secondary 9.0 –15.4W
CHECK RESISTANCE OF SIGNAL GENERATOR
(PICKUP COIL)
(See page IG–23)
Resistance: (Cold)
G 1 and G(–) 125–200W
G2 and G(–) 125–200W
155 – 250W 190 – 290 W
NE and G(–)
CHECK AIR GAP OF DISTRIBUTOR
(See page IG–23)
Air gap: 0.2 – 0.4 mm (0.008 – 0.016 in.)
CHECK IGT SIGNAL FROM ECM
(See page EG–195)
TRY ANOTHER IGNITER
IGNITION SYSTEM
ON–VEHICLE INSPECTION
SPARK TEST

CHECK THAT SPARK OCCURS

(a) Disconnect high–tension cord from the distributor.
(b) Hold the end approx. 12.5 mm (0.50 in.) from engine
(c) See if spark occurs while engine is being cranked.
HINT: 1'o prevent gasoline from being injected from
injectors during this test, crank the engine for no more
than 1 – 2 seconds at a time.
If the spark does not occur, perform the test as fol–
lows:
(Hot)
0.45 – 0.65W
11.4 – 18.1 kW
(Hot)
160–235W
160 – 235W
– (3VZ–E)
ground of vehicle.
Connect securely.
BAD
Replace the cord(s).
BAD
Check wiring between ignition switch to
ignition coil and igniter.
BAD
Replace the ignition coil.
BAD
Replace the distributor housing assembly.
BAD
Replace the distributor housing assembly.
BAD
Check wiring between ECM, distributor and
igniter, and then try another ECM.
BAD