Exhaust with no muffler or catalytic converter rides rough and sputters when accelerating

scan for codes and check fuel pressure with a gauge auto parts rent it. See link.

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

also, check for a vacuum leak and soft vacuum hoses if soft replace them.

Hey Bigjohn

It sounds like it could be a mass air flow sensor that has gone bad or is dirty, also scan for trouble codes, here are a couple of guides to help you,


https://www.2carpros.com/articles/mass-air-flow-service

and

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Please let us know happens so it will help others.

Best, Ken

I've put new plugs, wires , cap and rotor. Replaced mass air flow sensor. New fuel filter, fuel pressure regulator and injectors. My exhaust broke loose and had to fix it cheap. Got a feeling it's either the throttle position sensor or the O2sensors

Do you have an OBD2 plug? or is it an OBD1 truck?

scan for codes that is one of the first things to do also check for a vacuum leak because it sounds like computer is richening the fuel mix to take care of vacuum leak also running with no cat and no secondary O2 is not a good idea.