NO.26 EXHAUST SULPHUR SMELL [MZR 2.3 DISI Turbo]

id0103e2803200

26

EXHAUST SULPHUR SMELL
DESCRIPTION
•  Rotten egg smell (sulphur) from exhaust.
POSSIBLE CAUSE
•  Electrical connectors are disconnected or connected poorly
•  Charcoal canister malfunction
•  Vacuum lines are disconnected or connected improperly
•  Improper fuel pressure
•  Poor fuel quality
Warning
•  The following troubleshooting flow chart contains the fuel system diagnosis and repair procedures. Read the following warnings before performing the fuel system services:
―  Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel.
―  Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injury 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 [MZR 2.3 DISI Turbo].) (See AFTER SERVICE PRECAUTION [MZR 2.3 DISI Turbo].)
Caution
•  Disconnecting/connecting the quick release connector without cleaning it may possibly cause damage to the fuel pipe and quick release connector. Always clean the quick release connector joint area before disconnecting/connecting, and make sure that it is free of foreign material.

Diagnostic procedure

STEP

INSPECTION

RESULTS

ACTION
1
Are any driveability or exhaust smoke concerns present?
Yes
Go to the appropriate flow chart.
(See SYMPTOM DIAGNOSTIC INDEX [MZR 2.3 DISI Turbo].)
No
Go to the next step.
2
Inspect for the following:
•  Electrical connections
•  Vacuum lines
•  Fuel quality
Is there any malfunction?
Yes
Service if necessary.
•  Repeat this step.
No
Go to the next step.
3
Switch the ignition to ON.
Retrieve any DTCs using the M-MDS.
(See ON-BOARD DIAGNOSTIC TEST [MZR 2.3 DISI Turbo].)
Are any DTCs present?
Yes
Go to the applicable DTC inspection.
(See DTC TABLE [MZR 2.3 DISI Turbo].)
No
Go to the next step.
4
Access the FUEL_PRES PID using the M-MDS.
(See ON-BOARD DIAGNOSTIC TEST [MZR 2.3 DISI Turbo].)
Is the FUEL_PRES PID value within the specification?
(See PCM INSPECTION [MZR 2.3 DISI Turbo].)
Yes
Go to Step 8.
No
Go to the next step.
5
Is the vehicle accelerate performance normally?
Yes
Go to the next step.
No
Go to Step 7.
6
Inspect the fuel pressure sensor.
(See FUEL PRESSURE SENSOR INSPECTION [MZR 2.3 DISI Turbo].)
Is there any malfunction?
Yes
Replace the fuel delivery pipe.
(See FUEL INJECTOR REMOVAL/INSTALLATION [MZR 2.3 DISI Turbo].)
No
Go to Step 8.
7
Replace the high pressure fuel pump.
(See HIGH PRESSURE FUEL PUMP REMOVAL/INSTALLATION [MZR 2.3 DISI Turbo].)
Access the FUEL_PRES PID using the M-MDS.
(See ON-BOARD DIAGNOSTIC TEST [MZR 2.3 DISI Turbo].)
Is the FUEL_PRES PID value within the specified?
(See PCM INSPECTION [MZR 2.3 DISI Turbo].)
Yes
High-pressure fuel pump or spill valve control solenoid valve (built-in high pressure fuel pump) malfunction.
No
Relief valve malfunction.
•  Replace the fuel delivery pipe.
8
Inspect the charcoal canister for fuel saturation.
(See CHARCOAL CANISTER INSPECTION [MZR 2.3 DISI Turbo].)
Is a excess amount of liquid fuel present in canister?
Yes
Replace the charcoal canister.
(See CHARCOAL CANISTER REMOVAL/INSTALLATION [MZR 2.3 DISI Turbo].)
No
Inspect the fuel tank vent system.
•  If the fuel tank vent system is normal:
―  Suggest trying a different brand since sulfur content can vary in different fuels.
•  If the fuel tank vent system is not normal:
―  Repair or replace the malfunctioning part according to the inspection results.
9
Verify test results.
•  If normal, return to the diagnostic index to service any additional symptoms.
•  If a malfunction remains, inspect the related Service Information and perform the repair or diagnosis.
―  If the vehicle is repaired, troubleshooting is completed.
―  If the vehicle is not repaired or additional diagnostic information is not available, reprogram the PCM if a later calibration is available. Retest.