I have had a miss in the engine for about a year and it comes and goes. It is felt mainly when idling and it is random and not something that happens all the time. It runs good and just took a 1000 mile trip and felt it missing but still got about 18 mpg average. I have taken the injectors out and cleaned them on bench, I replace Cap and rotor, Ohmed wires and checked plugs and all seems good. What sensor would be causing this to miss?? Please help.

Year? Pull fault codes.

how bad is the miss, is it bad enough that the passenger will notice it or is it just very slight. I get a slight miss every once in awhile but not enough that anyone notices just me....lol

Sorry 95 Grand Cherokee and no fault codes come up and yes anyone can feel it when it does. The Volt meter drops just a little when it misses also. A couple weeks ago it missed continually for about 3 days and would shake vehicle while driving at about 40 mph then it quit for about 2 weeks now it is missing only intermittantly.