Mazda RX-8 Workshop Manual page 753

16 Check the engine oil condition.
Is the engine oil low viscosity
and/or is there a gasoline odor?
17 Inspect the oil pressure.
(See OIL PRESSURE INSPECTION
[13B-MSP].)
Is the oil pressure within the
specification?
18 Turn the ignition switch off.
Disconnect the fuel line quick
release connector and install the
fuel gauge to the fuel line.
Start the engine and run it at
idle.
Measure the fuel line pressure at
idle.
Is the fuel line pressure correct
at idle?
(See FUEL LINE PRESSURE
INSPECTION [13B-MSP].)
19 Check the oil pipe between
metering oil pump and metering
oil nozzle.
Is there air and/or clogging in the
oil pipe?
20 Verify test results.
If normal, return to the diagnostic index to service any additional symptoms.
If the malfunction remains, inspect the related Service Bulletins and/or On-line Repair
Information and perform repair or diagnosis.
Yes
No
Yes
No
Yes
No
Yes
No
If the vehicle is repaired, troubleshooting is completed.
If the vehicle is not repaired or additional diagnostic information is
not available, reprogram the PCM if a later calibration is available.
Replace the engine oil.
After that overhaul or replace the engine.
Go to the next step.
Go to the next step.
Repair or replace the malfunctioning part according to the
inspection results.
After that overhaul or replace the engine.
Go to the next step.
Replace the fuel pump unit.
(See FUEL PUMP UNIT REMOVAL/INSTALLATION [13B-
MSP].)
After that overhaul or replace the engine.
Inspect and repair for leakage and/or clogging in the oil
passage at the engine.
After that overhaul or replace the engine.
Overhaul or replace the engine.