Mazda RX8 - Page 60

Is a strong blue spark visible while
cranking at each disconnected
high-tension lead for the rotor
where the engine speed does not
drop in Step 8?
No
Inspect for the following:
• Open or short circuit in ignition coil
• Open circuit in high-tension leads
• Open circuit between ignition coil
connector GND terminal and GND
• Open circuit between ignition switch
and ignition coil
• Open circuit between ignition coils
terminal C and PCM terminal 2Z,
2AA, 2AC or 2AD
Yes
Spark plug is wet or covered with
carbon:
Inspect for fuel leakage from the injector.
Spark plug is grayish white:
Inspect for clogged fuel injector (FP1)
(RP1).
11
Inspect the spark plug for the rotor
where the engine speed did not
drop in Step 8.
Is the spark plug wet, covered with
carbon or grayish white?
No Go to the next step.
Yes Go to the next step.
12
Perform the drive-by-wire control
system operation inspection.
(See Drive-by-wire Control System
Inspection .)
Does the drive-by-wire control
system work properly?
No
Repair or replace the malfunctioning part
according to the drive-by-wire control
system operation inspection results.
Yes Repair suspected high-tension leads.
13
Inspect for cracks on the high-
tension leads.
Are there any cracks on the high-
tension leads?
No Go to the next step.
Yes Go to the next step.
14
Is a strong blue spark visible at
each disconnected high-tension
lead while cranking engine?
No
Inspect for the following:
• Open or short circuit in ignition coil
• Open circuit in high-tension leads
• Open circuit between ignition coil
connector GND terminal and GND
• Open circuit between ignition switch
and ignition coil
• Open circuit between ignition coils
terminal C and PCM terminal 2Z,
2AA, 2AC or 2AD
(w) RX8-Engine Troubleshooting
Page 60