Mazda RX8 - Engine Symptom Troubleshooting; Diagnostic Index

ENGINE SYMPTOM TROUBLESHOOTING
• Confirm trouble symptom using the following diagnostic index, then go to the applicable
troubleshooting chart.
Diagnostic Index
No. TROUBLESHOOTING ITEM DESCRIPTION PAGE
1 Melting of main or other fuses

(See NO.1 MELTING OF MAIN O
R
OTHER FUSES .)
2 MIL comes on
The MIL is
illuminated
incorrectly. (No
DTC's)
(See NO.2 MIL COMES ON .)
3 Will not crank
The starter does not
work.
(See NO.3 WILL NOT CRANK .)
4 Hard to start/long crank/erratic start/erratic crank
The starter cranks the
engine at normal
speed but the engine
requires excessive
cranking time before
starting.
(See NO.4 HARD TO START/LON
G
CRANK/ERRATIC START/ERRAT
I
CRANK .)
5 Engine stalls. After start/at idle
The engine stops
unexpectedly at idle
and/or after start.
(See NO.5 ENGINE STALLS-AFT
E
START/AT IDLE .)
6 Cranks normally but will not start
The starter cranks
engine at normal
speed but the engine
will not run.
(See NO.6 CRANKS NORMALLY
BUT WILL NOT START .)
7 Slow return to idle
The engine takes
more time than normal
to return to idle speed.
(See NO.7 SLOW RETURN TO ID
L
.)
8 Engine runs rough/rolling idle
The engine speed
fluctuates between the
specified idle speed
and lower speed and
the engine shakes
excessively.
(See NO.8 ENGINE RUNS
ROUGH/ROLLING IDLE .)
9 Fast idle/runs on
The engine speed
continues at fast idle
after warm-up.
The engine runs after
the ignition switch is
turned off.
(See NO.9 FAST IDLE/RUNS ON .
)
(w) RX8-Engine Troubleshooting
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