NO.26 EXHAUST SULPHUR SMELL [L3 R.H.D.]


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 fuel system diagnosis and repair procedures. Read following warnings before performing any fuel system-related procedures: • 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 [L3].) (See AFTER SERVICE PRECAUTION [L3].) Caution • Disconnecting/connecting quick release connector without cleaning them it may possibly cause damage to the fuel pipe or quick release connector. Always clean the quick release connector joint 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 appropriate flow chart.
1	Are any driveability or exhaust smoke concerns present?	No	Go to the next step.
2	Inspect the following: • Electrical connections • Vacuum lines • Fuel quality Are all items normal?	Yes	Go to the next step.
2		No	Repair or replace if necessary. Repeat Step 2.
3	Connect the WDS or equivalent to the DLC-2. Retrieve any continuous memory, KOEO and KOER DTCs using the WDS or equivalent. Are there any DTCs displayed?	Yes	DTC is displayed: Go to the appropriate DTC inspection. (See DTC TABLE [L3 R.H.D.].)
3		No	No DTC is displayed: Go to the next step.
4	Install a fuel pressure gauge to the fuel line. Start engine and idle it. Is the fuel line pressure correct at idle? (See FUEL LINE PRESSURE INSPECTION [L3 R.H.D.].)	Yes	Go to the next step.
4		No	Low: Inspect the fuel line for clogging. • If there is no malfunction, replace the fuel pump unit. (See FUEL PUMP UNIT REMOVAL/INSTALLATION [L3].) High: Replace the fuel pump unit. (See FUEL PUMP UNIT REMOVAL/INSTALLATION [L3].)
5	Inspect the charcoal canister for fuel saturation. Is an excess amount of liquid fuel present in canister?	Yes	Replace the charcoal canister.
5		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.
6	Verify test results. • If normal, return to the diagnostic index to service any additional symptoms. (See ENGINE SYMPTOM TROUBLESHOOTING [L3 R.H.D.].) • If any malfunction remains, inspect related service information, and repair or diagnosis. - If the vehicle is repaired, troubleshooting is completed. - If the vehicle is not repaired or additional diagnostic information is not available, replace the PCM. (See PCM REMOVAL/INSTALLATION [L3].)