Mazda 6 2002 - Page 300

TROUBLESHOOTING
F203
F
End Of Sie
6 Disconnect vacuum hose between purge
solenoid valve and intake manifold from purge
solenoid valve side.
Plug opening end of vacuum hose.
Drive vehicle.
Does engine condition improve?
Yes Inspect evaporative emission control system.
No Go to next step.
7 Connect WDS or equivalent to DLC-2.
Access TP, MAF, VSS, BOO, CPP, CPP/PNP
and TR PIDs.
Monitor each PID while driving vehicle.
(See F45 PCM INSPECTION.)
Are PIDs okay?
Yes Intermittent concern exists.
(See INTERMITTENT CONCERN
TROUBLESHOOTING.)
No TP PID: Inspect TP sensor.
MAF PID: Inspect MAF sensor.
VSS PID: Inspect VSS.
BOO PID: Inspect brake switch.
CPP PID: Inspect clutch switch (MTX).
CPP/PNP PID: Inspect neutral switch (MTX).
TR PID: Inspect TR switch (ATX) switch.
8 Verify test results.
• If okay, return to diagnostic index to service any additional symptoms.
• If malfunction remains, replace PCM.
STEP INSPECTION RESULTS ACTION