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ECU Power Supply

EFI Wiring Fundamentals

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Discussion and questions related to the course Motorsport Wiring Fundamentals

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Hi,

I´m using Xtremme G4X. What PDM Power Output should I use to feed my ECU? It´s going to be alone in that input. I´ve available 10, 15 and 20 Amp continuous from PDM

10A will be plenty, there is typically not much load on the positive supply. Typically it will be less than 3A even with all high side outputs fully loaded.

If using E-throttle then you will also need a separate PDM output connected to pin B5, again a 10A output would be fine. If not using E-throttle then you can use the same PDM output for 12V to both A5 and B5 pins.

Yeah Adam, I knew about E-Throttle ouput, but now I´m safer. I had choosen a 10A output to pin B5. And thank you for your help with ECU power supply.