DIAGNOSTIC PROCEDURE
DIAGNOSTIC PROCEDURE
NO.26 EXHAUST SULPHUR SMELL [MZI-3.5]
DESCRIPTION AND POSSIBLE CAUSES
POSSIBLE CAUSE
z
Accelerator pedal position sensor malfunction
z
Accelerator pedal position sensor misadjustment
z
Loosely installed accelerator pedal position sensor
STEP INSPECTION
RESULTS ACTION
1
Does A/C compressor disengage when
the A/C switch is turned off?
Yes
Go to the next step.
No
Go to symptom troubleshooting
"No.24 A/C is always on or A/C
compressor runs continuously".
2
Connect the M-MDS to the DLC-2.
Turn the ignition switch to the ON
position (Engine off).
Retrieve any DTCs.
Are there any DTCs displayed?
Yes
DTC is displayed:
Go to the appropriate DTC inspection.
(see
DTC TABLE [MZI-3.5]
.)
No
No DTC is displayed:
Inspect accelerator pedal position
sensor.
3
z
Verify test results.
{
If normal, return to diagnostic index to service any additional symptoms.
(See
ENGINE SYMPTOM TROUBLESHOOTING [MZI-3.5]
.)
{
If malfunction remains, inspect related Service Bulletins and/or On-line Repair
Information and perform repair or diagnosis.
z
If vehicle is repaired, troubleshooting completed.
z
If vehicle is not repaired or additional diagnostic information is not
available, replace the PCM.
(see
PCM REMOVAL/INSTALLATION [MZI-3.5]
.)
26
EXHAUST SULPHUR SMELL
DESCRIPTION
Rotten egg smell (sulphur) from exhaust
z
Electrical connectors are disconnected or connected poorly
z
Charcoal canister malfunction
z
Vacuum lines are disconnected or connected improperly.
z
Improper fuel pressure
z
Poor fuel quality
2007 Mazda CX-9 Grand Touring
2007 ENGINE PERFORMANCE Symptom Troubleshooting (MZI-3.5) - CX-9
Microsoft
Sunday, November 15, 2009 9:27:38 AM
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