Hi all,

My 98 Cobra (~65k miles) recently started having engine hesitation at
low RPMS when accelerating under load.  For example, 3rd gear, <1500
rpms or so, and accelerate, and the car will stutter severely, jerking
the car forward and back.  Once you get over 1700 rpms or so,
everything smooths out.

I originally thought this was a gas problem, as it started after a
fill-up at an unfamiliar gas station.  But it has persisted for a
couple of months now, and is even getting worse.

So, any armchair mechanics out there?  Does this sound like gas, or a
sensor?  Engine light is off.  I'll have to take the vaseline to the
dealer with me if I can't solve this myself.  :)

Thanks for any help.