TROUBLESHOOTING GUIDE - 28 FUEL ODOR
F-68spec table28 FUEL ODOR
DESCRIPTION: • Gasoline odor in cabin
NOTE
[TROUBLESHOOTING HINTS] ① Poor connection or damaged fuel system or evaporative emission control system ② Charcoal canister overflow due to evaporative emission control system malfunction
Troubleshooting steps - Fuel odor
1
INSPECTIONCheck if fuel leak or damage are visible at fuel system and evaporative emission control system
ResultYes
ACTIONRepair or replace (page F-100)
1
INSPECTION
ResultNo
ACTIONGo to next step
2
INSPECTIONCheck if '00' is displayed on Self-Diagnosis Checker with ignition switch ON (page F-78) [See fig1]
ResultYes
ACTIONGo to next step
2
INSPECTION
ResultNo
ACTIONMalfunction Code No. displayed: Check for cause (Refer to specified check sequence) (page F-80). '88' flashes: Check ECU terminal 1F voltage (page F-128). Voltage: Approx. 12V (Ignition switch ON). → If OK, replace ECU (page F-127). → If not OK, check wiring between ECU and Self-Diagnosis Checker (page F-7)
3
INSPECTIONCheck if vacuum is felt at solenoid valve (purge control) with engine running and throttle valve opened (Neutral switch connector disconnected) [See fig2]
ResultYes
ACTIONGo to Step 5
3
INSPECTION
ResultNo
ACTIONCheck for solenoid valve operating sound in this condition. → If OK, check vacuum hoses for clogging (page F-6). → If not OK, go to next step
4
INSPECTIONApply 12V and ground to solenoid valve (purge control) and check if air flows through valve [See fig3]
ResultYes
ACTIONCheck ECU terminal 2X voltage (page F-130)
4
INSPECTION
ResultNo
ACTIONReplace solenoid valve (page F-119)
5
INSPECTIONTry known good ECU (page F-127)
Result
ACTION
See also
F-100FUEL SYSTEMF-78SELF-DIAGNOSIS FUNCTIONF-80SELF-DIAGNOSIS FUNCTIONF-128CONTROL SYSTEM - Engine Control Unit Terminal Voltage TableF-127CONTROL SYSTEM - Engine Control Unit InspectionF-7OUTLINE - WIRING DIAGRAMF-6OUTLINEF-130CONTROL SYSTEM - Engine Control Unit Terminal Voltage / Terminal locationF-119EVAPORATIVE EMISSION CONTROL SYSTEM