Toyota 3S-GE Repair Manual page 427

IGNITION SYSTEM — ON—VEHlCLE INSPECTION
IG-7
ON -VEHICLE INSPECTION
SPARK TEST
Ia)
(bl
(cl
lflfliliw
CHECK THAT SPARK OCCURS
Disconnect the high—tension cord (from the ignition
coil) from the distributor cap.
Hold the end approx. 12.5 mm (0.50 in.) from the body
ground.
See if spark occurs while engine is being cranked.
HINT: To prevent gasoline from being injected from
injectors during this test, crank the engine for no more
than 1 - 2 seconds at time.
If the spark does not occur, perform the test as fol-
lows:
SPARK TEST
lmo
CHECK CONNECTION OF IGNITION COIL.
IGNITER AND DISTRIBUTOR CONNECTOR
Connect securely.
D
BAD
I OK
CHECK RESISTANCE OF HIGH—TENSION CORD
(See page IG-8)
Maximum resistance: 25 kQ per cord
Replace the cordlS).
-—i>
BAD
lok
CHECK POWER SUPPLY TO IGNITION COIL AND
IGNITER
1. Turn ignition switch to ON.
2. Check that there is battery voltage at ignition coil
positive (+) terminal.
Check the wiring between ignition switch,
ignition coil and igniter.
——-—>~
BAD
lok
CHECK RESISTANCE OF IGNITION COIL
(See page IG-11)
Resistance: Cold Hot
Primary 0.36 - 0.55 Q 0.45 - 0.65 Q
Secondary 9.0 - 15.4 kQ 11.4 -18.1 kQ
Replace the ignition coil.
BAD
lok
CHECK RESISTANCE OF SIGNAL GENERATOR
(PICKUP COILI
(See page IG-13)
Resistance: Cold Hot
G1 and G@ 125-200!) 160-235!)
G2 and G@ 125-2009 160-235!)
NE and G@ 155 - 250 Q 190 - 290 Q
Replace the distributor housing assembly.
.
BAD
lok
CHECK AIR GAP OF DISTRIBUTOR
(See page IG-12)
Air gap: 0.2 — 0.5 mm (0.008 — 0.020 in.)
Replace the distributor housing assembly.
BAD
lok
CHECK IGT SIGNAL FROM ECM
Check the wiring between ECU , distributor
and igniter, only then try another ECU.
BAD (See page EG-201)
I OK
TRY ANOTHER IGNITER
\»'O5!ll13