Anyone in this forum with the VDCoff / SLIP light on problem?

What is your question?

my xterra, out of a sudden shuts off while in low speed, like while turning in a corner or exiting a parking lot, and now I have the VDCoff and SLIP lights on for the rest of the day, and every time it takes longer to start and the engine shakes abruptly... something happens overnight since in the morning the lights are off, Then, the whole thing starts all over again. But wait, then it starts happening while you are on the highway at high speed as well out of a sudden, you feel a jolt, vehicle shuts off and on again and the lights come on once more, this usually happens when you change lines and your tires go over the rumble strips or pavement markers, so I imagine it will be a sensor as well, that is if someone ever finds for certain why this happens, This already caused me a small accident and rear ended another nissan, a sentra. Karma??? I took it in and they can't find anything wrong with it, my check engine soon light keep on due to the faulty gas leveler, since once de needle goes up, le check engine light comes off. Since the computer does not throw any codes for this issue i looked up on line (Thx God for Google) and found that is happening to a lot of people that are already complaining of costly repairs that did not solve the problem, as well an array of "possible reasons" for this to happen (I've checked ALL of them)