Mazda RX-8 Workshop Manual page 758

6 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].)
7 Inspect for fuel saturation inside
the charcoal canister.
Is there an excess amount of
liquid fuel present in the charcoal
canister?
8 Inspect for restriction and
leakage at the catalytic converter.
Damaged trigger wheel on eccentric shaft
Open or short circuit on eccentric shaft
position sensor
Open or short circuit between eccentric
shaft position sensor and PCM terminal
2AG and 2AP
Repair or replace the malfunctioning part according to the
inspection results.
If normal, go to the next step.
No Inspect the following:
High–tension leads
Ignition coil and connector
Yes Go to the next step.
Zero or low:
No
Inspect for clogged fuel line.
High:
Replace the fuel pump unit.
(See
REMOVAL/INSTALLATION
Yes Replace the charcoal canister.
(See EVAPORATIVE EMISSION (EVAP) CONTROL SYSTEM
REMOVAL/INSTALLATION
No Inspect the fuel tank vent system.
Go to the next step.
Yes Go to the next step.
If normal, replace the
fuel pump unit.
(See FUEL PUMP UNIT
REMOVAL/INSTALLATION
[13B-MSP].)
FUEL PUMP UNIT
[13B-MSP].)
[13B-MSP].)