Fuel pump voltage monitoring.

Hey guys. I'm in the planning process of my build and I'm realizing that it would be great if I had a way of not only monitoring voltage at the fuel pump, but a way to datalog this info as well.

Does anyone know of a way to do this with a standalone ECU setup? I'm figuring there may be some sort of sensor that can convert a voltage reading into a typical 5v style signal for a custom input into an ECU.

I plan to Be running MS3x. But I am still getting info together to see if it will do everything I need/want or if I should step up to something more professional grade. I know something like a motec or Emtron would be great but generally it's a bit out of my price range.

You can use a voltage divider to scale a higher voltage signal into something your logger can handle. Make sure the overall input is high impedance so there is to attempt to use your logging wires for current transfer.

Generally this is something you'd do with a power distribution module rather than an engine computer, and you'd be able to see voltage as well as amp draw, with amp draw being a great indicator of fuel pump issues.

HPA has a great course on this if you decide to go that route:

https://www.hpacademy.com/courses/pdm-installation-and-configuration/

MikeMcGinnis, I'm currently looking into them. They are definitely the way I'd like to go. But may not be able to go that route with budget. But still thinking it might just be most beneficial to save up and go that route. Definitely be better in the long run.

David Ferguson, thanks for the idea. The shop i work at has an in house race shop, and the head of the race shop is an automotive electrical engineer. Hes been the one scrutinizing my wiring diagrams telling me where I need to change shit.

Imma run this idea by him and see if I can get it to work the way I'd like it too. But also thinking about going back to the drawing board and re-designing for a PMU. Would make datalogging literally all circuits a cup of tea.

Sounds good Michael!