Mazda RX-8 Workshop Manual page 752

Measure the fuel line pressure at
idle.
Is the fuel line pressure correct
at idle?
(See FUEL LINE PRESSURE
INSPECTION [13B-MSP].)
12 Perform the Fuel Injector
Operation Inspection.
(See ENGINE CONTROL SYSTEM
OPERATION INSPECTION [13B-
MSP].)
Does the fuel injector operate
properly?
13 Perform the A/C Cut-off Control
System Inspection.
(See ENGINE CONTROL SYSTEM
OPERATION INSPECTION [13B-
MSP].)
Does the A/C cut-off control
operate properly?
14 Inspect the engine compression.
(See COMPRESSION INSPECTION
[13B-MSP].)
Is it normal?
15 Perform the Metering Oil Pump
Control Inspection.
(See ENGINE CONTROL SYSTEM
OPERATION INSPECTION [13B-
MSP].)
Does the metering oil pump
control operate properly?
pump circuit.
Inspect for clogged fuel line.
High:
Replace the fuel pump unit.
(See
REMOVAL/INSTALLATION
Yes Go to the next step.
No Repair or replace the malfunctioning part according to the
inspection results.
Yes Go to the next step.
No Repair or replace the malfunctioning part according to the
inspection results.
Yes Inspect the eccentric shaft bypass valve.
No Go to the next step.
Yes Go to the next step.
No Repair or replace the malfunctioning part according to the
inspection results.
After that overhaul or replace the engine.
If normal, replace the
fuel pump unit.
(See FUEL PUMP UNIT
REMOVAL/INSTALLATION
[13B-MSP].)
FUEL PUMP UNIT
[13B-MSP].)