Blown Fuses - Any Tips on Engine Harness?

[Blown&Injected]

Hit a bump and the injector fuse blows. I also had a weird Cam Sensor issue that solved its self.
Me thinks I need a new Harness.

So how tough a job is it to do with the engine in the car?

TIA

 

[Daniel Jost]

find the point that it is rubbing through and fix it, have it idle and move it all around till it blows, then look in that area.
,Dan

 

[PaCemkr86]

check your oil sending unit plug.. they like to melt and short out on things

 

[Blown&Injected]

Thanks for the ideas:

The rattle the harness to try to duplicate the problem is what I was thinking but it seems like it needs to be done anyway; if one, or a couple are going wrong, it seem reasonable that more are close behind.

That oil sending unit plug melted a few years ago - I was lucky that it did not short on anything