IGNITION SPARK TEST
1) Disconnect injector couplers (1) from injectors.
WARNING:
Without disconnection of injector coupler, combus-
tible gas may come out from spark plug holes during
this test and may get ignited in engine room.
2) Remove spark plugs and connect them to high-tension cords,
and then ground spark plugs.
3) Crank engine and check if each spark plug sparks.
4) If no spark is emitted, inspect high-tension cords, spark plugs,
ignition coil, distributor, etc.
ON-VEHICLE SERVICE
HIGH-TENSION CORDS
REMOVAL
1) Remove high-tension cord at ignition coil while gripping its cap.
2) Remove distributor cap (1) installed with high-tension cords.
3) Remove high-tension cord clamp from cylinder head cover.
4) Pull out high-tension cords from spark plugs while gripping each
cap.
CAUTION:
Removal of high-tension cords together with
clamps will be recommended so as not to damage
their inside wire (resistive conductor).
For the same reason, pull out each connection by
gripping cap portion.
5) Measure resistance of high-tension cord by using ohmmeter.
High-tension cord resistance:
10 – 22 k
/m (3.0 – 6.7 k
/ft)
Z–16 marked
. . .
4 – 10 k
/m (1.3 – 3.3 k
/ft)
Z– 7 marked
. . .
1. Marking on cord (Z–7E or Z–16)
6F-6
IGNITION SYSTEM
