93 altima

Hi all, I have a 93 altima which ran with no problems for 99,000 miles. This problem started out of the blue, with it not strating one day. Since then I have replaced the distributor, what I call the coil, tuneup and temp sensor. With all this the car will start, however it has a skip to it. The skip will kill the motor at idle. The skip is felt when running down the road when you let your foot off the gas. The skip is not felt while you are on the gas. I have ran several diagnostic procedures as out line from my factory manual. All diagnostic test shows all is well. I was wondering if any of you all have ran into this ghost in a altima. Thank you for any response.

sticking fuel pressure regular, fixed the problem.