On-vehicle Inspection
Spark Test
1.

Disconnect the injector connectors (A).

2.

Disconnect the ignition coil connectors (A).

note

When removing the ignition coil connector, pull the lock pin (A) and push the clip (B).

3.

Remove the ignition coils (A).

4.

Using a spark plug socket, remove the spark plugs (A).

caution

Be careful that no contaminates enter through the spark plug holes.

5.

Install the spark plug to the ignition coil.

6.

Ground the spark plug to the engine.

7.

Check if spark occurs while engine is being cranked.

note

To prevent fuel being injected from injectors while the engine is being cranked, disconnect the injector connectors.

Crank the engine for no more than 5 ~ 10 seconds.

8.

Inspect all the spark plugs.

9.

Using a spark plug socket, install the spark plugs.

Tightening torque:

14.7 ~ 24.5 N.m (1.5 ~ 2.5 kgf.m, 10.8 ~ 18.1 lb-ft)

10.

Install the ignition coils.

Tightening torque:

9.8 ~ 11.8 N.m (1.0 ~ 1.2 kgf.m, 7.2 ~ 8.7 lb-ft)

note

When inserting ignition coil into the cylinder head cover for spark plug to be inserting ignition coil, the sealing cap of ignition coil must be mated totally with inner side of cylinder head.

11.

Reconnect the ignition coil connectors.

12.

Reconnect the injector connectors.

Inspect Spark Plug
1.

Inspect the electrodes (A) and ceramic insulator (B).

Inspection Of Electrodes

Condition

Dark deposits

White deposits

Description

-

Fuel mixture too rich

-

Low air intake

-

Fuel mixture too lean

-

Advanced ignition timing

-

Insufficient plug tightening torque

2.

Check the electrode gap (A).

Standard

Unleaded : 1.0 ~ 1.1 mm (0.0394 ~ 0.0433 in.)

Leaded : 0.7 ~ 0.8 mm (0.0276 ~ 0.0315 in.)

Inspect Ignition Coil
1.

Measure the primary coil resistance between terminals (+) and (-).

Standard value: 0.75 Ω ± 15%

Яндекс.Метрика