ABCDEFGHIJKLMNOPQRSTUVWXY
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PinFuncionDescriptionWarning notes
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1Ignition 2Provides 5v to a smart coil*Ensure it is not a dumb coil. Connecting a dumb coil can damage the ECU.
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2Ignition 4Provides 5v to a smart coil*Ensure it is not a dumb coil. Connecting a dumb coil can damage the ECU.
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3TachoDrives a 5V capable TachometerThe tachometer must be 5V compatible to avoid damage to the system.
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4FanProvides gnd to Fan RelayVerify correct wiring to prevent fan relay failures.
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5Injector 1Injector Output, provides GNDEnsure the injector resistance is adequate to avoid ECU damage.
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6Injector 2Injector Output, provides GNDEnsure the injector resistance is adequate to avoid ECU damage.
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7Injector 3Injector Output, provides GNDEnsure the injector resistance is adequate to avoid ECU damage.
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8Injector 4Injector Output, provides GNDEnsure the injector resistance is adequate to avoid ECU damage.
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9IATAnalog Pulled up for ThermistorsIncorrect connections may cause electrical shorts or thermistor failures.
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10GNDWire to good, clean GNDEnsure the ground is clean and interference-free to avoid signal issues.
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11N/A
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1212V OutProvides 12v to a Hall sensorIncorrect connections may damage the Hall sensor.
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13Sensor GNDProvides GND to Hall and sensorsEnsure sensors are correctly grounded to avoid electrical noise.
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14Ignition 1Provides 5v to a smart coil*Ensure it is not a dumb coil. Connecting a dumb coil can damage the ECU.
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15Ignition 3Provides 5v to a smart coil*Ensure it is not a dumb coil. Connecting a dumb coil can damage the ECU.
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16IdleEngine Idle Output, provides GNDVerify the idle valve resistance to avoid ECU damage.
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17O2-B0-5V analog inputIncorrect connections may cause shorts or signal loss.
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18FuelPumpProvides gnd to fuel pump RelayVerify correct relay wiring to avoid fuel pump failures.
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195vProvides 5v to sensorsDo not connect incompatible sensors to the 5V line to prevent damage.
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20CLTAnalog Pulled up for ThermistorsIncorrect connections may cause electrical shorts or thermistor failures.
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21TPS0-5V analog inputIncorrect connections may cause shorts or signal loss.
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22O2 Sensor0-5V analog inputIncorrect connections may cause shorts or signal loss.
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23GNDWire to good, clean GNDEnsure the ground is clean and interference-free to avoid signal issues.
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2412V InRecieves switched 12VIncorrect connections may cause shorts or signal loss.
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25CKPHall-capable input for CrankIncorrect connections may damage the Hall sensor and the ECU.
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26CMPHall-capable input for CamIncorrect connections may damage the Hall sensor and the ECU.
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1CANLCAN Communications LOW
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2FlexFlex Fuel InputConnect a flex fuel sensor here
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3CANHCAN Communications HIGH
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42Step2 Step input, pulled to 5vConnect a switch that provides GND when 2 step is desired
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