z
Access the MAF PID.
z
Verify that the MAF PID changes
quickly according to engine speed.
z
Is the PID normal?
8
INSPECT FRONT HO2S
z
Inspect the front HO2S (RH) (with
DTC P2195) or the front HO2S
(LH) (with DTC P2197).
(see
FRONT HEATED
OXYGEN SENSOR (HO2S)
INSPECTION [MZI-3.5].
)
z
Is there any malfunction?
Yes
Inspect the related wiring harnesses
If there is no malfunction
Replace the HO2S, then go to Step 11.
No
Go to the next step.
9
INSPECT FUEL INJECTOR
z
Inspect the fuel injector for the
right bank (with DTC P2196) or
the left bank (with DTC P2198).
(see
FUEL INJECTOR
INSPECTION [MZI-3.5]
.)
z
Is there any malfunction?
Yes
Replace the suspected fuel injector, then
go to Step 11.
(see
FUEL INJECTOR
REMOVAL/INSTALLATION [MZI-
3.5]
.)
No
Go to the next step.
10
INSPECT FUEL LINE PRESSURE
z
Perform the "FUEL LINE
PRESSURE INSPECTION".
(see
FUEL LINE PRESSURE
INSPECTION [MZI-3.5]
.)
z
Is there any malfunction?
Yes
Replace the malfunctioning part. Go to the
next step.
No
Go to the next step.
11
VERIFY TROUBLESHOOTING OF
DTC P2196, P2198 HAS BEEN
COMPLETED
z
Verify that all disconnected
connectors are reconnected.
z
Turn the ignition switch to the ON
position (Engine off).
z
Clear the DTC from the PCM
memory using the M-MDS.
Yes
Replace the PCM, then go to the next step.
(see
PCM
REMOVAL/INSTALLATION [MZI-
3.5]
.)
2007 Mazda CX-9 Grand Touring
2007 ENGINE PERFORMANCE On-Board Diagnostic (MZI-3.5) - CX-9
Microsoft
Sunday, November 15, 2009 9:26:39 AM
Page 453
© 2005 Mitchell Repair Information Company, LLC.
