Possible Fuel issue 1992 Chevy Blazer TBI 5.7l

Wouldn't be a fuse. Check fuel filter to make sure ur not chasing the wrong issue, it could be ur catalytic converter, spark plugs, wires but i would check fuel pressure first before u decide to replace pump again

Irodri911 plugs and wires and fine, I have no cats, was like that when I bought the truck a few months ago, and it's putting around 40psi fuel pressure wise. Was debating whether it could be a sensor, or maybe coil. It seems to not do it when the temp hasn't reached normal running temperature. So I pulled the coil and threw one I had lying in the shop on it, still same result. Now in the direction that maybe it could be coolant temp sensor? Or possibly something to do with distributor/timing. Still stumped on it.

There's the problem. The truck normally runs in open loop meaning it burns more gas, once it reaches normal running temperature, it switches to closed loop and fuel feed is based on Co2 sensors feedback. If you don't have the catalytic converters, the ECM doesn't know how much fuel to send. 2 options would be to either install the cads back on or remove the temperature sensor so it always runs in open loop but it will burn more fuel.

I'll give it a shot. Thanks!