NEED HELP!!! ENGINE BUCKS UNDER LOAD!!

[pbui3057]

Do we have twin cars or soemthing??? lol Those are my exact symptoms! It seems to be ok when I am in drive at 60 or OD when I'm at 70. It also feels normal if I drive EXTREMELY gently. As soon as I want to go, that's when it feels like crap again. It might be time to let a pro look at it. I'm too tired to deal with it right now.

[pocket-rocket]

Maybe a bad CPS wire? How does it idle? Does it still have somewhat of a miss at idle? It does sound electrical (gee, imagine that, lol). It could be an intermitant fuel injector wire or something.

[94oldsdohc]

It has a bit of a miss in idle, all injectors are firing. I suspect it may be the CPS too, going bad after getting heat soaked by the engine.

[Apeiron]

My 92 Cutlass is having the exact same problems right now. It started about 2 weeks after putting new plugs and wires in.

[goatman]

I know they're not the same engines, but close enough for me. My 2.8 Beretta did the same exact thing. I replaced everything I could think of, fuel filter, plugs, wires, ignition modules, sensors out the ass. . . Then I ran a can of Sea-Foam through it, and all was good for about a month. But it kept doing it after that, so I replaced the injectors with a used set from a car with 55k. No more problems. Now my mom's 94 LeSabre is doing the same thing, ran some more Sea-Foam, all better now. I would assume its an injector problem.