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MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS TSB Revision MULTIPORT FUEL INJECTION (MFI) 13A-579 • To check for system blockage, do a performance test which uses a mechanical vacuum gauge and DIAGNOSIS Required Special Tools: • MB991958: Scan Tool (MUT-III Sub Assembly) • MB991824: V.C.I. • MB991827: MUT-III USB cable • MB991911: MUT-III main harness B • MB991658: Test Harness Set |