Mazda RX8 - Page 91

Connect the WDS or equivalent
to the DLC-2.
Access the APP1, APP2, RPM,
MAF, O2S11, O2S12, TP_REL
and VSS PIDs.
Drive vehicle while monitoring
the PIDs.
Are the PIDs within the
specifications?
(See PCM INSPECTION .)
No
APP1, APP2 PIDs:
Inspect if the output signal APP sensor
changes smoothly.
RPM PID:
Inspect the eccentric shaft position sensor
and the related wiring harness for vibration
or an intermittent open/short circuit or both.
If normal, go to Step 7.
MAF PID:
Inspect for an intermittent open circuit of the
MAF sensor and the related wiring harness.
O2S11 PID:
Inspect the front HO2S and the related wiring
harness for vibration or an intermittent open
or short circuit or both. If normal, go to Step
8.
O2S12 PID:
Inspect the rear HO2S and the related wiring
harness for vibration or an intermittent open
or short circuit or both. If normal, go to Step
8.
TP_REL PID:
Inspect if the output signal TP sensor
changes smoothly.
VSS PID:
Inspect ABS or DCS.
(See DTC Table .)
(See DTC Table .)
Yes Go to the next step.
6
Inspect the knock sensor.
(See KNOCK SENSOR (KS)
INSPECTION .)
Is the knock sensor normal?
No
Replace the knock sensor.
(See KNOCK SENSOR (KS)
REMOVAL/INSTALLATION .)
7 Yes Go to the next step.
(w) RX8-Engine Troubleshooting
Page 91