NO.26 EXHAUST SULPHUR SMELL [MZI-3.7]S
NO.26 EXHAUST SULPHUR SMELL (MZI-3.7) DETECTION CONDITIONS AND POSSIBLE
CAUSES
DIAGNOSTIC PROCEDURE
NO.26 EXHAUST SULPHUR SMELL (MZI-3.7) DIAGNOSTIC PROCEDURE
(See
PCM REMOVAL/INSTALLATION [MZI-3.7]
.)
26
EXHAUST SULPHUR SMELL
DESCRIPTION
Rotten egg smell (sulphur) from exhaust
POSSIBLE
CAUSE
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
WARNING:
The following troubleshooting flow chart contains fuel system diagnosis and
repair procedures. Read following warnings before servicing fuel system:
z
Fuel vapor is hazardous. It can easily ignite, causing serious injury
and damage. Always keep sparks and flames away from fuel.
z
Fuel line spills and leakage are dangerous. Fuel can ignite and cause
serious injuries or death and damage. Fuel can also irritate skin and
eyes. To prevent this, always complete "BEFORE SERVICE
PRECAUTION" and "AFTER SERVICE PRECAUTION" described in this
manual.
(See BEFORE SERVICE PRECAUTION [MZI-3.7] .)
(See AFTER SERVICE PRECAUTION [MZI-3.7] .)
CAUTION:
z
Disconnecting/connecting quick release connector without cleaning it
may cause damage to fuel pipe and quick release connector. Always
clean quick release connector joint area before
disconnecting/connecting, and make sure that it is free of foreign
material.
STEP
INSPECTION
RESULTS
ACTION
1
Are any driveability or exhaust
smoke concerns present?
Yes
Go to the appropriate flow chart.
No
Go to the next step.
Inspect the following:
2008 Mazda CX-9 Grand Touring
2008 ENGINE Symptom Troubleshooting (MZI-3.7) - Mazda CX-9
Microsoft
Sunday, November 15, 2009 10:10:06 AM
Page 86
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