MSefi.com read only forum (Jan.15,2018)

I am laying out my fuse/relay design and I need to know the amp rating for the Main and Fuel pump relays. I am using a Geo Metro or early Honda Civic fuel pump. The EMS will only be contorling a single coil and injector.
Many thanks for any assistance.

On average, general purpose automotive relays are rated at ~30 to 40 amps. Certainly, a 30 amp (or more) relay will work for your fuel pump and ecu.

Like this one:
http://www.summitracing.com/parts/var-93940/overview/

Ken