Mazda RX8 - Page 63

Connect the WDS or equivalent to
the DLC-2.
Start the engine and run it at idle.
Access the LONG FT1 PID.
Measure the LONG FT1 PID at
idle.
Is the PID value between −
−−
−14%
and +14% ?
No
The LONG FT1 PID is out of the
specification.
LONG FT1 PID less than −
−−
−14% (too rich):
• Inspect the EVAP control system.
! If the system is normal, go to
Step 27.
LONG FT1 PID more than +14% (too
lean):
• Inspect for air leakage at intake-air
system components.
! If the system is normal, go to
the next step.
Yes Repair or replace the suspected part.
22
Visually inspect the exhaust
system part.
Is there any deformed exhaust
system part?
No Go to the next step.
Yes Go to the next step.
23
Perform the metering oil pump
control inspection.
(See Metering Oil Pump Control
Inspection .)
Does the metering oil pump control
operate properly?
No
Repair or replace the malfunctioning part
according to the inspection results.
Yes Go to the next step.
24
Perform the fuel injector (FP1)
(RP1) operation inspection.
(See Fuel Injector Operation
Inspection .)
Are the fuel injectors (FP1) (RP1)
operating properly?
No
Repair or replace the malfunctioning parts,
according to the fuel injector (FP1) (RP1)
operation inspection results.
Yes Go to the next step.
25
Inspect the fuel injectors (FP1)
(RP1) for the following:
(See FUEL INJECTOR
INSPECTION .)
• Leakage
• Clogging
• Injector amount
Are the fuel injectors (FP1) (RP1)
normal?
No
Replace the fuel injector (FP1) (RP1).
(See FUEL INJECTOR
REMOVAL/INSTALLATION .)
(w) RX8-Engine Troubleshooting
Page 63