Ignition Spark Check

1. For H25 (2.5L) engine, remove surge tank cover.
2. 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.

3. Remove spark plug and check it for condition and type referring to "Spark Plug Removal and Installation".
4. If OK, connect ignition coil coupler to ignition coil assembly and connect spark plug to ignition coil assembly. Ground spark plug.
5. Crank engine and check if each spark plug sparks.
If no spark is emitted, inspect the related parts as described in "Ignition System Symptom Diagnosis".
6. After checking, install spark plug referring to "Spark Plug Removal and Installation".
7. Connect injector coupler (1).
8. For H25 (2.5L) engine, install surge tank cover.