NO.20 FUEL ODOR (IN ENGINE COMPARTMENT) [AJ]


20	Fuel odor (in engine compartment)
DESCRIPTION	• Gasoline fuel smell or visible leakage
POSSIBLE CAUSE	• Excessive fuel pressure • Purge solenoid valve malfunction • Fuel tank vent system blockage • Charcoal canister malfunction 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].)


STEP	INSPECTION		ACTION
1	• Visually inspect for fuel leakage at the fuel injector O-ring, and fuel line. • Service if necessary. • Is fuel line pressure held after the ignition switch is turned off?	Yes	Go to the next step.
1		No	Inspect the pressure regulator diaphragm condition. • If condition is normal, inspect the fuel injector. • If condition is not normal, replace the pressure regulator.
2	• Inspect for blockage/restriction or open circuit between the engine vacuum port and the charcoal canister. • Inspect for blockage in the fuel tank vent system. • Is fault indicated?	Yes	Replace vacuum hose.
2		No	Go to the next step.
3	• Inspect the purge solenoid valve. (See PURGE SOLENOID VALVE INSPECTION [AJ] (VIN: JMZ LW19J7# 300001-, JM0 LW10J300 300001-301405, JM6 LW10J300 300001-, JM8 LW28J# 300001-301513).) (See PURGE SOLENOID VALVE INSPECTION [AJ] (VIN: JM0 LW10J300 301406-, JMZ LW69J7# 307683-, JM8 LW28J# 301514-, JM8 LW28A# 301514- (Assumed)).) • Is solenoid operating properly?	Yes	Go to the next step.
3		No	Replace the purge solenoid valve.
4	• Connect the WDS or equivalent to the DLC-2. • Turn the ignition switch to the ON position (Engine off). • Retrieve any DTCs. • Is "PASSED" displayed?	Yes	No DTC is displayed: • Inspect the charcoal canister for fuel saturation. - If excess amount of liquid fuel present, replace the charcoal canister.
4		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)).)
5	• 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.