DTC P0148 [MZI-3.7]
DTC P0148 (MZI-3.7) DETECTION CONDITIONS AND POSSIBLE CAUSES
DIAGNOSTIC PROCEDURE
DTC P0148 (MZI-3.7) DIAGNOSTIC PROCEDURE
12
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.
z
Retrieve DTCs using the M-MDS.
z
Is the PENDING CODE for this DTC
present?
3.7]
.)
No
Go to the next step.
13
VERIFY AFTER REPAIR PROCEDURE
z
Perform "AFTER REPAIR
PROCEDURE". (See
AFTER
REPAIR PROCEDURE [MZI-3.7]
.)
z
Are any DTC present?
Yes
Go to the applicable DTC inspection. (See
DTC TABLE [MZI-3.7]
.)
No
Troubleshooting completed.
DTC P0148
Fuel delivery error
DETECTION CONDITION
z
At least 1 bank is lean at wide open throttle (WOT).
POSSIBLE CAUSE
z
Severely restricted fuel filter
z
Severely restricted fuel supply line
z
Damaged or worn fuel pump
z
Damaged or contaminated MAF sensor
STEP
INSPECTION
ACTION
1
VERIFY FREEZE FRAME DATA HAS
BEEN RECORDED
z
Has FREEZE FRAME DATA been
recorded?
Yes Go to the next step.
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.
INSPECT SYSTEM INTEGRITY
2008 Mazda CX-9 Grand Touring
2008 ENGINE PERFORMANCE On-Board Diagnostic (MZI-3.7) - Mazda CX-9
Microsoft
Sunday, November 15, 2009 10:08:35 AM
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© 2005 Mitchell Repair Information Company, LLC.
