Mazda RX8 - Page 47

Connect the WDS or equivalent to the
DLC-2.
Access the APP1 and APP2 PIDs.
Crank the engine with the accelerator
pedal released.
Do the APP1 and APP2 PIDs indicate
that the accelerator pedal is in the
released position?
No
Inspect for the following:
• APP sensor
• Wiring harnesses and
connectors between PCM APP
sensor
! PCM terminal
4YAPP sensor
terminal D
! PCM terminal
5FAPP sensor
terminal F
! PCM terminal
5AEAPP sensor
terminal E
! PCM terminal
4XAPP sensor
terminal A
! PCM terminal
5CAPP sensor
terminal C
! PCM terminal
5ABAPP sensor
terminal B
Yes Go to the next step.
11
Connect the WDS or equivalent to the
DLC-2.
Access the TP_REL PID.
Crank the engine with the accelerator
pedal released.
Does the TP_REL PID indicate the
closed throttle position?
No
Inspect for the following:
• TP sensor
• Wiring harnesses and
connectors between PCM and
throttle body
! PCM terminal
1Qthrottle body
terminal E
! PCM terminal
1Jthrottle body
terminal F
! PCM terminal
2Fthrottle body
terminal C
! PCM terminal
1Mthrottle body
terminal D
12 Access the ECT PID. Yes Go to the next step.
(w) RX8-Engine Troubleshooting
Page 47