Bad Misfire / Wont Start

[TancookChaos]

I have a 1993 GMC Sierra C1500 v6 4.3L with an automatic transmission and i have tried replacing the distributor cap, router button, spark-plugs and the module that sits under the distributor cap but nothing works it just rolls tries to kick and if it does start it dies instantly. also when trying to start it smoke rolls out of the throttle body I have no clue how to fix this

[diyer2]

Try pouring some gas into the throttle body and then try to start it.

if it fires for a short time, fuel pump.

[TancookChaos]

I opened the gas fill cap and you can hear the pump i replaced the pump in February it gets gas and its a mad enough misfire is floods up the plugs every time and smoke that smells like burning gas pours out of the throttle body

[95k150050]

Any check engine codes?

[TancookChaos]

1 hour ago, 95k150050 said:

Any check engine codes?

Service engine light has been in for like 5 years now and I dont have a code reader

[davester]

It's  your '93 right?  If so, it's OBDI, and I believe you can just use a paperclip to short some pins together to read the codes via a flashing light where you count the flashes.