This morning, my 94 XJS cut off at the exit ramp after driving on the interstate for about 15 minutes. The car started back up immediately and idled perfectly. I did noticed the idle wanted to slightly "hunt" briefly upon restart. I have put in a new filter and has fresh gas with conditioner.
Could it be the throttle position sensor is beginning to act up? I have only had the car about a month;therefore, any suggestions appreciated!

xke190sl
1994 XJS Convertible 2+2
104,384 miles