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Z32 FAQ:


What can be tested through the wiring harness?
    Pin-out of ECU Connector:
     
    ECU Side
     
    109 101
    110 102
    111 103
    112 104
    113 105
    114 106
    115 107
    116 108
     
    11 1
    12 2
    13 3
    14 4
    15 5
    16 6
    17 7
    18 8
    19 9
    20 10
    31 21
    32 22
    33 23
    34 24
    35 25
    36 26
    37 27
    38 28
    39 29
    40 30
     
    51 41
    52 42
    53 43
    54 44
    55 45
    56 46
    57 47
    58 48
    59 49
    60 50
    Harness Side
     
    101 109
    102 110
    103 111
    104 112
    105 113
    106 114
    107 115
    108 116
     
    1 11
    2 12
    3 13
    4 14
    5 15
    6 16
    7 17
    8 18
    9 19
    10 20
    21 31
    22 32
    23 33
    24 34
    25 35
    26 36
    27 37
    28 38
    29 39
    30 40
     
    41 51
    42 52
    43 53
    44 54
    45 55
    46 56
    47 57
    48 58
    49 59
    50 60

    ECU wires and pin connections:

    In a  previous message, someone had posted about how it might be possible to measure the ohmage of the fuel injectors from the ECU harness instead of the FI connector itself, with the added benefit of testing the wiring harness leading to each FI as well. Nominal resistance is 10-14 ohms per FI.

    You need to test the ohmage between pin/wire #58 (common positive) and the following pins for each injector:

    FI #1 - 101
    FI #2 - 110
    FI #3 - 103
    FI #4 - 112
    FI #5 - 105
    FI #6 - 114

    Other interesting pins of note:

    #23 -  Detonation sensor
    #26 & #27 - AirFlow Meter
    #25 - Wastegate valve control
    #18 - Fuel Pump Relay

    Some things NOT to try to meter:

    #115 & #29 - Right Oxy Sensor
    #115 & #55 - Left Oxy Sensor

    Voltage sent through the O2 sensors will ruin them, use the ECU self diagnostic instead.

    Gonzalez

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