I have a 1992 nissan maxima check engine light just came on. engine runs rough at low speeds and at idle,but when I rev the engine in neutral it clears up as if fuel is loading up and the clears.
and? What is your question? Have the computer scanned for the codes, they are stored in memory, this will pinpoint you to what sensor is tripping the light. Local auto parts stores will do this for free. Post back the 4 digit code and we can help you from there.