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MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS TSB Revision MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE> 13B-531 CHECK AT THE ENGINE CONTROL MODULE (ECM) <M/T> OR POWERTRAIN M1131027400028 TERMINAL VOLTAGE CHECK CHART AK000057 ECM <M/T> or PCM <A/T> Connector Terminal Arrangement <M/T> <A/T> AB 1 2 3 4 5 6 7 8 41 48 49 50 51 52 53 54 55 56 57 58 60 61 62 63 64 65 66 67 42 43 44 45 46 59 68 47 41 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 42 43 71 78 79 80 90 91 72 81 92 82 93 83 84 94 85 95 86 96 74 88 97 76 89 98 77 108 121 101 109 122 110 123 102 112 124 113114 125 115 126 116 127 117 128 104 119 129 106 120 130 107 118 105 111 103 87 75 73 44 45 46 66 78 91 71 79 92 80 93 83 84 95 85 96 86 97 87 98 72 82 94 74 89 99 76 90 100 77 88 75 81 73 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 TERMINAL TERMINAL INSPECTION ITEM INSPECTION CONDITION (ENGINE CONDITION) NORMAL 1 1 No.1 injector • Engine: warming up, idling • Suddenly depress the accelerator pedal From 11 − 14 V momentarily 99No.2 injector 24 24 No.3 injector 2 2 No.4 injector 10 10 No.5 injector 25 25 No.6 injector 3 3 Left bank heated Engine: warming up, idling 9 − 11 V Engine: Revving 9 − 11 V → B+ (momentarily) 4 4 Right bank heated Engine: warming up, idling 9 − 11 V Engine: Revving B+ 6 6 EGR solenoid Ignition switch: "ON" B+ • Engine: idling • Suddenly depress the accelerator pedal. From B+, drops 8 8 Generator G • Engine: warming up, idling (radiator fan: • Headlight: OFF to ON • Rear defogger switch: OFF to ON • Stop light switch: OFF to ON Voltage rises by − 3.5 V 52 54 Generator FR • Engine: warming up, idling (radiator fan: • Headlight: OFF to ON • Rear defogger switch: OFF to ON • Stop light switch: OFF to ON Voltage drops 11 11 Ignition power Engine: 3,000 r/min 0.3 − 3.0 V |