 1.CHECK IGNITION COIL WITH POWER TRANSISTOR-I
- Turn ignition switch OFF.
- Disconnect ignition coil harness connector.
- Check resistance between ignition coil terminals as follows.
Terminals
| Resistance [at 25°C (77°F)]
| 1 and 2
| Except 0 or ∞Ω
| 1 and 3
| Except 0 Ω
| 2 and 3
|
Is the inspection result normal?
YES >>GO TO 2. NO >>Replace malfunctioning ignition coil with power transistor.
 2.CHECK IGNITION COIL WITH POWER TRANSISTOR-II
■ CAUTION ■
Perform the following procedure in a place with no combustible objects and good centilation.
- Turn ignition switch OFF.
- Reconnect all harness connectors disconnected.
- Remove fuel pump fuse (1) in IPDM E/R (2) to release fuel pressure.

NOTE: Do not use CONSULT-III to release fuel pressure, or fuel pressure applies again during the following procedure.
- Start engine.
- After engine stalls, crank it two or three times to release all fuel pressure.
- Turn ignition switch OFF.
- Remove all ignition coil harness connectors to avoid the electrical discharge from the ignition coils.
- Remove ignition coil and spark plug of the cylinder to be checked.
- Crank engine for 5 seconds or more to remove combustion gas in the cylinder.
- Connect spark plug and harness connector to ignition coil.
- Fix ignition coil using a rope etc. with gap of 13 - 17 mm (0.52 - 0.66 in) between the edge of the spark plug and grounded metal portion as shown in the figure.

- Crank engine for about three seconds, and check whether spark is generated between the spark plug and the grounded metal portion.
Spark should be generated.
|
■ CAUTION ■ - Do not place to the spark plug and the ignition coil within 0.5 m (1.6 ft) each other. Be careful not to get an electrical shock while checking, because the electrical discharge voltage becomes 20 kV or more.
- It might to damage the ignition coil if the gap of more than 17 mm (0.66 in) is made.
NOTE: When the gap is less than 13 mm (0.52 in), a spark might be generated even if the coil is malfunctioning.
Is the inspection result normal?
YES >>INSPECTION END NO >>Replace malfunctioning ignition coil with power transistor.
|