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Home >> Suzuki >> 2002 >> Esteem GL Sedan L4-1.8L >> Repair and Diagnosis >> Powertrain Management >> Ignition System >> Spark Plug >> Testing and Inspection >> Ignition Spark Test
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Ignition Spark Test




1. Disconnect injector coupler (1).

WARNING: Without disconnection of injector coupler, combustible gas may come out from spark plug holes during this test and may get ignited in engine room.

2. Disconnect ignition coil coupler (s).




3. Remove ignition coil bolt (s) (1), and then pull out ignition coil (s) (2).
4. Remove spark plug (s) (3).
5. Connect ignition coil coupler to ignition coil and connect spark plug to ignition coil.
6. Ground them.
7. Crank engine and check if each spark plug sparks.
If no spark is emitted, inspect spark plugs, ignition coils, CMP sensor, igniter, etc.
8. Install spark plug (s) (3) and tighten them to specified torque.

Tightening Torque
Spark plug (a): 25 N.m (2.5 kg-m, 18.0 lb-ft)

9. Install ignition coil(s) (2) securely.




10. Tighten ignition coil bolt(s) (1), and then connect ignition coil coupler(s).

Tightening Torque
Ignition coil bolt (b): 3 N.m (0.3 kg-m, 2.5 lb-ft)

11. Install ignition coil cover.
12. Connect injector coupler.