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MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS TSB Revision MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE> 13A-614 Check Conditions B: For Test to Run • The fuel tank temperature is less than 36 °C (97 °F), and less than 13 minutes have elapsed since the engine was started. • Engine coolant temperature is greater than 60°C (140 °F). • Power steering pressure switch: "OFF" • Barometric pressure is greater than 76 kPa (11 psi). • Fuel tank differential pressure sensor output volt- age is 1 to 4 volts. • Vehicle speed is greater than or equal to 20 km/h (12.4 mph). Check Conditions C: For Test to Stop • Intake air temperature is greater than −10°C (14 °F). • When the evaporative emission purge solenoid and evaporative emission ventilation solenoid are • The pressure fluctuation is less than 647 Pa (0.094 psi). • 10 seconds have elapsed since the start of the previous monitoring. • Monitoring time: 75 − 125 seconds. Judgment Criteria • Internal pressure of the fuel tank has changed more than 981 Pa (0.142 psi) in 20 seconds after − 125 seconds) depends on the fuel level and the temperature in . DTC SET CONDITIONS Remaining fuel amount is 40 − 85 percent of capacity (fuel level sensor output voltage is 2.4 − 3.7 volts). Check Conditions A: At Start up • Intake air temperature is less than 36 °C (97 °F) when the engine is started. • The engine coolant temperature is less than 36 °C (97 °F) when the engine is started. Check Conditions B: For Test to Run • The fuel tank temperature is less than 36 °C (97 °F). • Barometric pressure is greater than 76 kPa (11 psi). • Fuel tank differential pressure sensor output volt- age is 1 to 4 volts. Check Conditions C: For Test to Stop • Intake air temperature is greater than −10 °C (14 °F). • Engine coolant temperature is greater than 20 °C (68 °F). • When the evaporative emission purge solenoid and evaporative emission ventilation solenoid are • 10 seconds have elapsed since the start of the previous monitoring. • Monitoring time: 10 − 14 minutes. Judgment Criteria • Internal pressure of the fuel tank has changed more than 2 kPa (0.29 psi) in 128 seconds after − 14 minutes) depends on the fuel level and the temperature in . OBD-ll DRIVE CYCLE PATTERN Refer to Diagnostic Function − OBD-ll Drive Cycle − Procedure 1 − Evaporative Emission System Leak Monitor . TROUBLESHOOTING HINTS (THE MOST • Loose fuel cap. • Fuel cap relief pressure is incorrect. • Evaporative emission canister seal is leaking. • Fuel tank, purge line or vapor line seal is leaking. • Evaporative emission ventilation solenoid does not seal. |