MULTIPORT FUEL INJECTION(MFI) DIAGNOSIS
MULTIPORT FUEL INJECTION (MFI) <2.4L>
STEP 14. Check for leaks in the fuel tank.
NOTE: Carefully check the fuel pump assembly and the
(2) Connect an evaporative emission system pressure pump to
the leveling valve nipple.
(3) Plug the filler hose, feed pipe, return pipe and rollover valve
nipple connected to the fuel tank.
NOTE: If these items are not securely plugged here, the
(4) Apply pressure with the evaporative emission system
(5) In the pressurized state, check for the leak by applying soap
water, etc. to each section.
Q: Can the leaks be pinpointed?
There is leaks at the fuel pump assembly or the inner
parts, check again that there are no leaks, reinstall
There is leaks at another section : Go to Step 15.
STEP 15. Visually check for cracks in the fuel tank filler
Q: Can the cracks be found out?
YES : Replace the fuel tank filler neck, reinstall the fuel tank.
Then go to Step 1 .
NO : Reinstall the fuel tank. Then go to Step 1.