{
ECT
{
MAF
{
TP_REL
{
VSS
z
Are the PIDs normal?
7
VERIFY CURRENT INPUT SIGNAL
STATUS OF MAF SENSOR
z
Connect the M-MDS to the DLC-2.
z
Start the engine.
z
Access the MAF PID.
z
Verify that the MAF PID changes
quickly according to engine speed.
z
Is the PID normal?
Yes Go to the next step.
No Replace the MAF/IAT sensor, then go to Step 11.
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-3.7]
.)
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-3.7]
.)
z
Is there any malfunction?
Yes
Replace the suspected fuel injector, then go to
Step 11. (See
FUEL INJECTOR
REMOVAL/INSTALLATION [MZI-3.7]
.)
No
Go to the next step.
10
INSPECT FUEL LINE PRESSURE
z
Perform the "FUEL LINE
PRESSURE INSPECTION".
(See
FUEL LINE PRESSURE
INSPECTION [MZI-3.7]
.)
z
Is there any malfunction?
Yes
Replace the malfunctioning part. Go to the next
step.
No
Go to the next step.
2008 Mazda CX-9 Grand Touring
2008 ENGINE PERFORMANCE On-Board Diagnostic (MZI-3.7) - Mazda CX-9
Microsoft
Sunday, November 15, 2009 10:08:43 AM
Page 415
© 2005 Mitchell Repair Information Company, LLC.
