older microtech fuel computer on 5MGE, has a large brown connector (prob. 20mm square), that seems to have had a relay of somesort on the end.
dont know what sort of relay
what sort of realy is needed for the fuel pump(5MGE ma61)
Generally fuel computers will have a relay for the fuel pump/s. This is done because one they draw a reasonable amount of current, and two they don't need to run constantly, ie. The ignition in the on position without the engine running.