Mitsubishi Galant. Manual - part 263
MULTIPORT FUEL INJECTION(MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.0L>
13B-277
STEP 13. Check for leaks in the fuel tank.
(1) Visually check for cracks and leaks, etc.
NOTE: Carefully check the fuel pump assembly and the
inner pressure sensor installation section in the fuel tank.
(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
fuel could leak in the next step.
(4) Apply pressure with the evaporative emission system
pressure pump.
(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
pressure sensor installation section : Reassemble the
parts, check again that there are no leaks, reinstall
the fuel tank. Then go to Step 1.
There is leaks at another section : Go to Step 14.
STEP 14. Visually check for cracks in the fuel tank filler
neck.
(1) Visually check for cracks in the fuel tank filler neck.
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.
AC000196
AC000197
AC000198