94 Dodge ram 4x4, runs super rough.

^^
Entirely possible as the distributor may have been removed and replaced by the trans shop in an effort to 'make the vehicle run' after a ? 2-3k $ rebuild.
cope said
It did have a major exhaust leak when i first picked up the truck but i made the trans shop fix that.

cope,
no scan tool needed on Dodge truck OBD1 ...
key ON, OFF, ON, OFF, ON -- observe and record the dash 'flashes' from the amber
siloutte of the ck engine lamp .

With Very Humble Respects Honored Posters --
cope May I suggest a code baseline -
?Dash code cold?
?Dash code hot ?