Hiccups while driving?

[96B-Mike]

While driving high speeds (highways) my car seems to have some kind of hiccup (like as if skipped a beat) and it does it like every couple seconds?

[1988GTU]

egr kickin in or fuel mixture changing abruptly.. injector

[Koots]

How old is your fuel pump or fuel filter? I've had dying fuel pumps act like that but they didn't last much longer after exhibiting symptoms like that. A clogged fuel filter will also cause this, but it's mostly evident under heavy load.

[96B-Mike]

Everything about the egr is brand new, and just recently fixed an injector problem?

Fuel pump probably has never been changed.. I do remember changing the fuel filter about 4 years ago lol

[Rettax3]

I am betting on a sticking/clogged injector or a spark problem -check all plug wires, ICM-to-crank sensor line, swap out the coils if you have known-good spares. Also try pulling the spark-plugs and reading them to see if you can pin it down, but basically it sounds like one of your cylinders is misfiring. Corrosion or wire-damage on one of the injector control wires to the PCM could do this too, especially since it is so intermittent.

[96B-Mike]

if one of my cylinders were to misfire...wouldnt it idle rough? because it idles perfect?

[3X00-Modified]

Some conditions at cruise are more strenuous than at idle which will point out or generate a skip easier.

[96B-Mike]

ah okay, thank you...ill give the troubleshooting a try ASAP