Mazda RX8 - Page 101

(See OIL PRESSURE INSPECTION
.)
Is the oil pressure within the
specification?
No
Repair or replace the malfunctioning part according
to the inspection results.
After that overhaul or replace the engine.
(See Engine Workshop Manual.)
Yes Go to the next step.
12
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 .)
No
Replace the fuel pump unit.
(See FUEL PUMP UNIT
REMOVAL/INSTALLATION .)
After that overhaul or replace the engine.
(See Engine Workshop Manual.)
Yes
Inspect and repair for leakage and/or clogging in the
oil passage at the engine.
After that overhaul or replace the engine.
(See Engine Workshop Manual.)
13
Check the oil pipe between the
metering oil pump and the metering
oil nozzle.
Is there any air and/or clogging in the
oil pipe?
No
Overhaul or replace the engine.
(See Engine Workshop Manual.)
Yes Go to the next step.
14
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 .)
No
Zero or low:
Inspect the fuel pump relay and the fuel pump
circuit.
Inspect for clogged fuel line.
If normal, replace the fuel pump unit.
(See FUEL PUMP UNIT
REMOVAL/INSTALLATION .)
High:
Replace the fuel pump unit.
(See FUEL PUMP UNIT
REMOVAL/INSTALLATION .)
(w) RX8-Engine Troubleshooting
Page 101