| On-vehicle Inspection |
| Inspect ignition coil assembly and Perform spark test |
| 1. |
Check for DTCs.
|
| 2. |
Check if sparks occur.
|
| 3. |
If sparks do not occur, perform the following test.
|
| 4. |
Using a spark plug wrench, install spark plugs.
|
| 5. |
Install the ignition coils.
|
| 6. |
Install the cylinder head center cover and the engine cover.
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Description Ignition timing is controlled by the electronic control ignition timing system. The standard reference ignition timing data for the engine operating conditions are pre-pro grammed in the memory of the ECM (Engine Control Module).
Description The A/C Pressure Transducer (APT) converts the pressure value of high pressure line into voltage value after measuring it. By converted voltage value, engine ECU controls the cooling fan by operating it high speed or low speed.