Mazda RX8 - Sensor Inspection

foreign material.
Diagnostic procedure
STEP INSPECTION RESULTS ACTION
Yes
Repair or replace the air suction at the intake-air
system.
1
Inspect air suction between the MAF
sensor and intake-port.
Is there any air suction?
No Go to the next step.
Yes Go to the next step.
2
Connect the WDS or equivalent to
the DLC-2.
Access the ECT PID.
Verify that the ECT PID is less than
116°
°°
°C {241°
°°
°F} during driving.
Is the ECT PID less than the
specification?
No
Inspect the cooling system for the cause of
overheating.
Yes Go to the next step.
3
Connect the WDS or equivalent to
the DLC-2.
Access the IAT and the MAF PIDs.
Monitor each PID.
(See PCM INSPECTION .)
Are PIDs normal?
No
IAT PID : Inspect IAT sensor.
(See INTAKE AIR TEMPERATURE (IAT)
SENSOR INSPECTION .)
MAF PID : Inspect MAF sensor.
(See MASS AIR FLOW (MAF) SENSOR
INSPECTION .)
Yes
DTC is displayed:
Go to the applicable DTC inspection.
(See DTC TABLE .)
4
Connect the WDS or equivalent to
the DLC-2.
Turn the ignition switch to the ON
position (Engine off).
Are there any DTCs displayed?
No
No DTC is displayed:
Go to the next step.
Yes Go to the next step.
5
Perform the fuel pump speed control
operation inspection.
(See Fuel Pump Speed Control
Operation Inspection .)
Does the fuel pump speed control
operate properly?
No
Repair or replace the malfunctioning parts,
according to the fuel pump speed control operation
inspection results.
(w) RX8-Engine Troubleshooting
Page 99