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MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS TSB Revision MULTIPORT FUEL INJECTION (MFI) <3.0L> 13B-1027 (2) Measure the voltage between terminal 57 <M/T> or 49 <A/T> and ground. • Voltage should be battery positive voltage. Q: Is battery positive voltage (approximately 12 volts) present? A-18X terminal 3 and ECM connector C-58 terminal AK000378AE 47 46 45 41 42 43 44 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 <M/T> C-58 HARNESS AK000379AG <A/T> C-55 HARNESS 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 |