MULTIPORT FUEL INJECTION(MFI) DIAGNOSIS
MULTIPORT FUEL INJECTION (MFI) <3.0L>
STEP 3. Check the evaporative emission ventilation
disconnect the hose G from the evaporative emission
(2) Connect the hand vacuum pump to the nipple of the
evaporative emission ventilation solenoid from which the
(3) Drive the evaporative emission ventilation solenoid with the
scan tool MB991502 actuator test, and confirm that the
Q: Does the vacuum pump gauge indicate the atmosheric
pressure when the evaporative emission purge solenoid
evaporative emission purge solenoid. Then go to Step
emission purge solenoid trouble code DTC P0446.
STEP 4. Pressure test for evaporator line from hose I to
side, and plug the hose from which the pipes have been
(2) Perform the pressure test again.
Q: Are there any leaks in the evaporator line?