need help my 97 dodge ram 1500 5.2l has a promblem running when driving down the road at steady speen it bucks like its not getting fuel but soon as i put the pedal to the floor it comes back till it dose it agin at steady speeds cant fig it out i tested the fuel presser got 40 to 55 psi clean gas replaced the iac etc sensor both but at ideal after few mins start up it hisses nd ready to die out like not getting fuel then comes back nd dose it agin open to suggetions please help getting stumped thanx

 

Probably not much help but I'd take it to Advanced Auto and have thm check the codes.

 

Welcome to DF. You posted in the wrong section. Moving to the correct section.

 

Disconnect the oxygen sensor, and see if the problem goes away. (the pre-cat sensor, screws right into the front of the cat.)

 

the first code was the o2 sensor 1 I cleared the codes then I replaced the etc nd iac drive it it bucks like im not getting power until I flat foot it I have power till it dose it agin I have no codes at all drove it around no codes kick on but bucking nd till I give it full throttle nd when its warm up when I park ideal will begin to start dieing rough hesitation

 

I have a horrible time understanding what you are saying. But did you take HeyYou's advice and disconnect the oxygen sensor?