What is this black box in rear trunk near ECU?

[itsnotanova]

I have one possible theory. Mice/rats love to chew on wires in the trunk. It's their second favorite spot. On top of the engine is their favorite nesting spot. Maybe a mouse/rat got up in there and chewed those wires. The owner replaced the chewed wires with that.

[78F350]

Originally Posted by itsnotanova

...Maybe a mouse/rat got up in there and chewed those wires. The owner replaced the chewed wires with that.

I think Woody nailed it. The PO probably bought an inline fuse bundle to repair the harness.


Good for now, but for long term, a replacement engine harness would be best. You may be able to scrape your knuckles and install a harness with the engine in, but Probably best to wait until you are doing some more major maintenance and drop the engine. Especially if the car runs & drives well for now.