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MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS TSB Revision MULTIPORT FUEL INJECTION (MFI) 13A-121 DTC P0098: Intake Air Temperature Circuit High Input (sensor 2) . CIRCUIT OPERATION • Approximately 5 volts are applied to the intake air temperature sensor 2 output terminal (terminal • The intake air temperature sensor 2 is a negative temperature coefficient type of resistor. When the • The intake air temperature sensor 2 output volt- age increases when the resistance increases and . TECHNICAL DESCRIPTION • The intake air temperature sensor 2 converts the intake air temperature to a voltage. • The ECM checks whether this voltage is within a specified range. . AK704399 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 112 113 114 109 108 107 110 111 115 116 106 105 118 117 2 1 2 8 7 6 5 4 3 11 21 20 19 18 17 16 15 14 13 12 9 22 1 10 AB 97 98 INTAKE AIR TEMPERATURE ENGINE CONTROL MODULE 2 1 16 17 5 V INTAKE AIR TEMPERATURE SENSOR 2 CIRCUIT GREEN- RED GREEN- RED BLA CK- YELO W BLA CK- YELO W B-16 A-13 (MU802409) B-10 AK704235 AB Connector: B-10 ECM B-10 (GR) AK704400 AB Connector: B-16 B-16 (B) Intake air temperature |