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NO.26 EXHAUST SULPHUR SMELL [AJ]

BME010300103231

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

  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 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 [AJ].)
  (See AFTER SERVICE PRECAUTION [AJ].)

Diagnostic procedure

STEP | INSPECTION | ACTION
--- | --- | ---
1 | • Are any driveability or exhaust smoke concerns present? | Yes | Go to the applicable flow chart.
No | Go to the next step.
2 | • Inspect the following:

  - Electrical connections
  - Vacuum lines

• Are all items normal?
Yes
Go to the next step.
No | Service if necessary. Repeat Step 2.
3 | • Connect the WDS or equivalent to the DLC-2. • Turn the ignition switch to the ON position (Engine off). • Retrieve any DTC. • Is "PASSED" displayed? | Yes | No DTC is displayed: • Go to the next step.
No | DTC is displayed: • Go to the applicable DTC inspection. (See DTC TABLE [AJ] (VIN: JMZ LW19J7*# 300001-, JM0 LW10J300 300001-301405, JM6 LW10J300 300001-, JM8 LW28J**# 300001-301513).) (See DTC TABLE [AJ] (VIN: JM0 LW10J300 301406-, JMZ LW69J7*# 307683-, JM8 LW28J**# 301514-, JM8 LW28A**# 301514- (Assumed)).)
4 | • Install a fuel pressure gauge between the pulsation damper and the fuel distributor. • Start the engine and run it at idle. • Is fuel line pressure correct at idle? (See FUEL LINE PRESSURE INSPECTION [AJ]) | Yes | Go to the next step.
No | Zero or low: • Inspect fuel pump circuit. • Inspect for open fuel pump relief valve. • Inspect for fuel leakage inside the pressure regulator. • Inspect for clogged main fuel line. High:
• Inspect the pressure regulator for high pressure cause.
• Inspect for clogged fuel return line.
5 | • Inspect the charcoal canister for fuel saturation. • Is excess amount of liquid fuel present in the charcoal canister? | Yes | Replace the charcoal canister.
No | Inspect the fuel tank vent system. • If the fuel tank vent system is normal, since sulphur content can vary in different fuels, try a different brand. • If the fuel tank vent system is not normal, repair or replace the malfunctioning part.
6 | • Verify test results.

  - If normal, return to diagnostic index to service any additional symptoms.
  - If malfunction remains, inspect related Service Information and perform repair or diagnosis.

  • If vehicle is repaired, troubleshooting completed.
  • If vehicle is not repaired or additional diagnostic information is not available, replace or reprogram the PCM.