Mazda RX-8 Workshop Manual page 812

WARNING:
The following troubleshooting flow chart contains fuel system diagnosis and repair
procedures. Read the following warnings before servicing the fuel system:
CAUTION:
Diagnostic procedure
STEP INSPECTION
1 Inspect air suction between MAF
sensor and intake-port.
Is there any air suction?
2 Access the ECT PID.
(See ON-BOARD DIAGNOSTIC
TEST [13B-MSP].)
Verify that the ECT PID is less
than 116 °C {241 °F} during
driving.
Is the ECT PID less than the
specification?
(See PCM INSPECTION [13B-
MSP].)
3 Access the IAT and the MAF
Metering oil pump malfunction
Fuel vapor is hazardous. It can easily ignite, causing serious injury and
damage. Always keep sparks and flames away from fuel.
Fuel line spills and leakage are dangerous. Fuel can ignite and cause
serious injuries or death and damage. Fuel can also irritate skin and eyes.
To prevent this, always complete "BEFORE SERVICE PRECAUTION" and
"AFTER SERVICE PRECAUTION" described in this manual. (See
SERVICE PRECAUTION
[13B-MSP].)
Disconnecting/connecting quick release connector without cleaning it may
possibly cause damage to fuel pipe and quick release connector. Always
clean quick release connector joint area before disconnecting/connecting,
and make sure that it is free of foreign material.
RESULTS
Yes
No
Yes
No
Yes
Leakage or clogging in oil pipe
Leakage or clogging in oil nozzle
[13B-MSP].) (See AFTER SERVICE PRECAUTION
Repair or replace the air suction at the intake-air system.
Go to the next step.
Go to the next step.
Inspect the cooling system for the cause of overheating.
Go to the next step.
BEFORE
ACTION