| On-vehicle Inspection |
| 1. | Check for DTCs.
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| 2. | Check if sparks occur.
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| 3. | If sparks do not occur, perform the following test.
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| 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. |
DescriptionIgnition timing is controlled by the electronic control ignition timing system. The standard reference ignition timing data for the engine operating conditions are preprogrammed in the memory of the ECM (Engine Control Module).
Inspection1.Check the resistance of the ambient temperature sensor between terminals 1 and 2 whether it changes by changing the ambient temperature.1. Ambient Sensor (+)2. Sensor groundSpecification Ambient temperature [°C (°F)] Resistance between terminal 1 and 2 (
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