HAS BEEN RECORDED
z
Has FREEZE FRAME DATA
been recorded?
No
Record FREEZE FRAME DATA on the
repair order, then go to the next step.
2
VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
z
Verify related Service Bulletins
and/or on-line repair information
availability.
z
Is any related Service Bulletins
available?
Yes
Perform repair or diagnosis according to
the available Service Bulletins.
z
If the vehicle is not repaired, go to
the next step.
No
Go to the next step.
3
PERFORM KOER SELF-TEST
z
Verify that the engine is at normal
operating temperature.
z
Perform the KOER self-test.
z
Are DTCs P0040, P0041 or P1127
present?
Yes
Go to the appropriate DTC
troubleshooting.
(See
DTC TABLE [MZI-3.5]
.)
No
Go to the next step.
4
INSPECT FOR UNMETERED AIR
LEAKS
z
Carefully inspect the following
areas for potential air leaks:
{
Hoses connecting to the
MAF sensor assembly
{
Hoses connecting to the
throttle body
{
Intake manifold gasket leaks
{
PCV system
{
The vacuum lines are
disconnected
{
Improperly seated engine oil
dipstick, tube or oil filler
cap
{
Exhaust leaks at flanges and
gaskets
z
Are any air leaks present?
NOTE:
z
Fuel calculations can be
affected by unmetered air leaks.
Yes
Repair the source of the air leak. Then go
to Step 17.
No
Go to the next step.
5
INSPECT HO2S CIRCUIT (S) FOR
Yes
Go to the next step.
2007 Mazda CX-9 Grand Touring
2007 ENGINE PERFORMANCE On-Board Diagnostic (MZI-3.5) - CX-9
Microsoft
Sunday, November 15, 2009 9:26:30 AM
Page 92
© 2005 Mitchell Repair Information Company, LLC.
