Stutters while driving

[Hickerbilly]

So I replaced my plenium gaskets yesterday, because I replaced the fuel pressure regulator in my 96 5.7 vortec. Along with spark plugs and I have done a complete tune up from the ground up 3 months ago, and sprayed my vacuum lines to check for leaks, and replaced my banks 2 sensor 2 o2 sensor that the scanner said was the issue. I'm stumped on this, any helpful ideas on why my truck ideals fine some times and rough the other, and stutters while I drive but once I floor it it's fine?

[barry G]

did you unhook battery for 30 min or so?

 

I did the similar o2 repairs.. blamed fuel and on and on.

I also changed all the wires, etc.

By chance unrelated, I unhooked the battery for some rocker panel welding, lo and behold the old truck went to perfect upon restart.

 

30 minutes unhooked.

I do positive and negative unhook..make it dead as a door nail.

good time to wash it in the yard too.

 

worth a try.

the ecu will reset, claim good ..but battery unhook really takes it down for changes.

[Hickerbilly]

Ya I did that and still same thing is continuing to happen. So I think my spider injectors or fuel pump are my issue

[Jonathan Ellender]

What would be the solution for spider injectors be to keep it factory? Replacing the injectors them selves or something else?

 

I have the same issue on my 98 5.7L .. idles fine; sometimes its smooth as a kittens purr sometimes its got a miss sometimes worse than others. I do have a CEL on for O2 sensor P0138 but thats because there isn't one LOL!!! No muffler at this time and i have not yet found the O2 sensor wire but I don't think that will cause the stutter.

 

I've redone all the grounds; and leads to the alt; new alt and pully system. Coil; plugs; cap rotator wires.

 

Only thing really i know about the engine thus far is 2nd cyl back has a little oil coming through a bad guide valve seal I have a non fouler on it now to keep the plug from getting socked by oil, but I dont think that's really causing the miss.