Ignition System Inspection; Spark Test; On-Vehicle Inspection - Toyota 3F-E Repair Manual Supplement

SPARK TEST

BAD
CHECK CONNECTION OF IGNITION
COIL, IGNITER AND DISTRIBUTOR
CONNECTORS
OK
CHECK RESISTANCE OF HIGH-TENSION
CORDS (See page IG-6)
OK
CHECK POWER SUPPLY TO IGNITION
COIL AND IGNITER
1. Ignition switch turn to ON.
2. Check that there is battery voltage at
ignition coil positive (+) terminal.
OK
CHECK RESISTANCE OF IGNITION COIL
(See page IG-7)
OK
CHECK RESISTANCE OF SIGNAL GENE-
RATOR (PICKUP COIL) (See page IG-7)
OK
CHECK AIR GAP OF DISTRIBUTOR
(See page IG-7)
OK
TRY ANOTHER IGNITER
IGNITION SYSTEM — On-Vehicle Inspection

ON-VEHICLE INSPECTION

SPARK TEST
CHECK THAT SPARK OCCURS
(a)
(b)
(c)
HINT: To 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 follows:
Disconnect high-tension cord from distributor.
Hold the end approx. 12.5 mm (0.50 in.) from body
of vehicle.
See if spark occurs while engine is being cranked.
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
J
I assembly.
BAD
IG-5