Help! Accidentally reversed the polarity when jumping my 1985 Celica GT.

[church666]

Yes I know, I'm an idiot. I've done this a thousand times that my confidence just got too big and I forgot to double check. I bought a new battery and nothing, even no lights on the dash. I've check all my visible fuses in the bay and by the drivers wall, they're all fine. but I did find out that a part that connects off of the positive terminal got fried, i have no idea what this part is called, can you guys help me? and maybe give me some other things to check?
it is a 1985 celica gt 2.4 efi.
ill include a link to the picture of the part.

link: https://www.instagram.com/helpwithcelica/?hl=en

[twotone_ra64]

Those are fuse links on the positive terminal cable of the battery. Not sure on replacements for that. Might just add an inline 100A circuit breaker instead.

[danf]

You'll have blown multiple fuses, multiple fusible links and possibly the ECU. There's multiple fusible links hanging off the positive battery cable and two in the engine fuse box.

I bought a car that was like that.