fuel pump issue

[e-dirtym52]

In my 91 obd1 m52 swap I replaced my fuel pump because it was bad. But when. I replaced it with another one its all of the sudden not getting power. It's not getting power at the pump, the relay, and the c101. So I don't get why now that I change it, it won't get power anymore. I ttried replacing my ecu and still nothing.

[e-dirtym52]

Also replaced relay

[Jezza]

So was it working after the swap? Or did you replace the pump while you were doing the swap?

[RoadHazard]

Did you check the fuse?

[BeefSupreme]

-check fuse
-if not fuse you probably plugged it in backwards(the plug at the top of the pump hanger). It happens more often than you'd think

[e-dirtym52]

Yea it was working earlier in the week just tried to do some maintenance and put in a fresh pump. Fuse was good. I needed to take my car to my buddies shop to get some exhaust stuff done so I decided to just hardwire 12 to the pump to just get it there. But miraculously out of nowhere the pump decided it would like to work again. And it's still continuing to work. I don't get it haha