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SCREWDRIVER ECU
WIRING CONNECTIONS
Red
12V ( + ) direct from battery }
Black 12V ( -- ) direct to battery
Blue
injector supply }
Black injector earth }
Brown 12V + supply to one high pressure fuel pump
Purple 12V + supply from ignition switch
White ignition contact breaker
Black }
} Sheathed with two pin plug for intake air temperature sensor
White }
© Copyright – MoTeC Pty Ltd
Reproduction in whole or in part is prohibited without written approval from MoTeC Pty Ltd.
} paired together
}
} paired together
Page 1 of 5
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Summary of Contents for Motec ScrewDriver ECU
- Page 1 Black } } Sheathed with two pin plug for intake air temperature sensor White } © Copyright – MoTeC Pty Ltd Page 1 of 5 Reproduction in whole or in part is prohibited without written approval from MoTeC Pty Ltd.
- Page 2 SETTING UP THE MOTEC E.C.U. CYLINDER SELECTION Switches 1 and 2 can be arranged by the user to give settings for 4, 6, 8 and 12 cylinder setting by following the coding arrangement on the facie board. Be careful to follow the printed lines from the code panel to the switches.
- Page 3 is not under pressure other than the residual tank return line pressure drop, but welding must be checked for leaks. 2. Use either vehicles low pressure standard pump to lift from fuel tank via water separator/fuel filter to header tank into one of the bottom connections. 3.
- Page 4 lightly modified engine for maximum fuel economy a figure of 4% is O.K. One problem often encountered is that, while the gas analyser is adjusted for zero and span, it may not have been calibrated with span gas of a known CO percentage for some time. We have found a number of analysers with errors greater than 2% C0, which is enough to give seriously defective information which you are using to tune your mega dollar engine.
- Page 5 2. Never supply 12V + direct to injectors for checking or testing as permanent damage usually occurs. All injectors run at considerably reduced, but various voltages depending on type. The MoTeC E.C.U. allows for this. 3. The brown fuel pump supply wire is designed to operate only one Bosch type high pressure fuel pump (current capacity is a peak 10 amps continuous).
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