MX-5 Miata L4-2.0L (2008)
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Ignition Coil: Testing and Inspection
IGNITION COIL INSPECTION [LF]
Ignition Coil Inspection
1. Perform the spark test and identify the malfunctioning cylinder.
2. Replace the ignition coil of the malfunctioning cylinder with that of a normal cylinder, and reperform the spark test.
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If the spark is not normal due to a malfunctioning ignition coil, replace that ignition coil.
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It is unlikely that all four ignition coils fail to operate properly. To prevent replacing a normal component, perform the above procedure,
identify the malfunctioning ignition coil, and replace it.
Ignition Coil with Built-in Igniter Inspection
1. Disconnect the ignition coil connector.
2. Measure the resistance between each terminal on the ignition coil connector using an analog circuit tester.
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If the measurement corresponds to the table, replace the ignition coil.