Failing Coil Pack?
 

Hello folks,

I have a 97 Elantra with lots of miles (well over 200kmi), but I still like to keep it going.
I think the coil pack is failing. For several hundred miles, the gas mileage isn't what it should be, and when I really step on it in a low gear the engine bucks a bit like its being starved for fuel. Now its running rough and the engine is misfiring some of the time (blinking CEL). The resistance on the 3 terminals where the coil pack connects to the wiring harness reads around 0.4 ohms to no more than 1 or 2 ohms at any given point. I think it should be much higher so that leads me to suspect some of the windings are breaking down.

edit: I will add that the plugs are new, and the wires are NAPA lifetimes replaced about 20-30kmi ago.

What do you think??

Many thanks!

Coil packs usually don't start to fail, they just die. Personally, I'd get the codes in the computer read first before you start throwing parts at the problem without knowing what the problem actually is.