Blown 20A MPI Fuse = ECU?

[gofastman]

a blown mpi fuse makes me think shorted injector / harness, never looked at a wiring diagram for that circut though, check the injectors impedance with an ohm meter

[1QUICK4]

The more I think about it the more I'm leaning towards the fuel pump circut or the MPI relay. I fucking hate not having access to wiring diagrams.

[1QUICK4]

It's fixed!

The MPI relay had vibrated enough to somehow short itself out internally on its own metal casing. Looked good from the outside but when I took it apart you could see where it arched out.

Thank god for the Mitsu graveyards full of spare parts in my garages