Mazda RX-8 Workshop Manual page 1138

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2011 - RX-8 - Engine
IGNITION COIL INSPECTION [13B-MSP]
Ignition Coil Inspection (Spark Test)
1. Perform the spark test and identify the malfunctioning cylinder.(See
SYSTEM OPERATION INSPECTION
2. Replace the ignition coil of the malfunctioning cylinder with that of a normal cylinder, and
reperform the spark test.(See
If the spark is not normal due to a malfunctioning ignition coil, replace that
ignition coil.
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 Inspection
1. Warm up the engine.
2. Connect the timing light to the high-tension lead.
3. Verify that the timing light flashes at a certain interval on all high-tension leads while idling
and racing the engine.
If the timing light does not flash at a certain interval, inspect the following:
a. Replace the high-tension lead and spark plug for which the timing light flashes at
a certain interval.
b. Verify that the timing light flashes at a certain interval while idling and racing the
engine.
[13B-MSP].)
ENGINE CONTROL SYSTEM OPERATION INSPECTION
If the timing light does not flash at a certain interval even if the
high-tension lead and spark plug are replaced, replace the ignition
coil. (See IGNITION COIL REMOVAL/INSTALLATION
If the high-tension lead and spark plug are replaced and the timing
light flashes at a certain interval, a high-tension lead or spark plug
malfunction can be considered possible causes. (See
LEAD INSPECTION [13B-MSP].) (See
[13B-MSP].)
ENGINE CONTROL
[13B-MSP].)
HIGH-TENSION
SPARK PLUG INSPECTION
[13B-MSP].)