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MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS TSB Revision MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE> 13A-271 STEP 13. Check for leaks in the evaporator line hose G, J, Fuel tank (2) Sequentially apply vacuum with a hand vacuum pump connected to hose G, J, K, L and hose M. Q: Can the leaks be pinpointed? YES : Replace that hose, reinstall the filler neck assembly. Then go to Step 34. NO : Go to Step 14. STEP 14. Check the check valve A. shown, it should pass air. (2) When you blow the check valve, on air should leak from the check valve body. Q: Is there any failure? YES : Replace it, reinstall the filler neck assembly. Then go to Step 34. NO : Go to Step 15. STEP 15. Check the check valve B. shown above, it should pass more air. (2) When you blow the check valve from the arrow direction shown below, it should pass less air. (3) When you blow the check valve, on air should leak from the check valve body. Q: Is there any failure? YES : Replace it, reinstall the filler neck assembly and filler neck protector. Then go to Step 34. NO : Go to Step 16. AC002032 AB HOSE G AC AC002039 AB HOSE L AC HOSE K HOSE M HOSE J AC002076 AB CHECK VALVE A AC002078 CHECK VALVE B AB |