My 1985 325e [Picture Heavy]

[Wschnitz]

after it finally runs youll need to look for different wheels and tires lol

[Wardie]

Untapped already didn't change and swapped relays and seem to fix the fuel pump issue. Now for everything else... Hahha maybe it just fried all the relays

[DER E30]

Untap those things you tapped to see if the problem goes away? Swap the relay with another that's the same kind to test the relay itself

[Wardie]

It was the black and yellow wire, which is the tach n fuel I believe.

Tapped Into the black And white/black.

Would make since it was something fuel related because of the relay going bad. At least I think it went bad.

[DER E30]

There's power, everything worked then I tried to integrate the c104 then something didn't agree. The relays make a buzzing sound. Sounds like it's maybe not getting enough power?

Sounds like the c104 is the problem... Recheck all the things you modded during "integration"

[Wardie]

I got the one on the oil pan for sure

[Wardie]

Fuses are ok, battery is fine. I'm not 100% on engine grounds. Happened late at night

[Wschnitz]

You checked all the obvious ones? like the 2-3 engine grounds, battery, made sure all the right fuses were in, etc?

[Wardie]

There's power, everything worked then I tried to integrate the c104 then something didn't agree. The relays make a buzzing sound. Sounds like it's maybe not getting enough power?

[Wschnitz]

Choo choo pics pls.

But really this needs to get done, I want to be jelly.

[DER E30]

DOes it have power at it??

[Wardie]

I mean nothing on fuse 21 works hahahaha

[DER E30]

I know what it supports, everything inside the car hahaha

Sounds like you've narrowed down the problem! Seriously though, can you start unplugging things that are connected to 21?

[Wardie]

I know what it supports, everything inside the car hahaha

[2mAn]

Id start by looking to see what fuse 21 supports