my Wife's Micra is used mainly for journeys of less than five miles. Although she ran the car for six years without any problems, during the past few weeks the engine rev's have dropped when at rest at ATS or junctions, cutting out completely on a round-a-bout on one occasion. When idling in park, over a period of two minutes + when warm, the engine rev's drop, then increase dramatically without any pressure being applied to the accelerator. My local non-Nissan mechanic is at a loss. After changing the fuel filter without any appreciable improvement, he is understandably reluctant to progress further without an indication of where the problem lies. have you heard of similar symptoms? My mechanic has a hunch it may be due to electrical problems relating to the CTV gearbox.
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Needs the fault codes read in the first instance. Suspect possible problems with the EGR valve inside the throttle body or the airflow sensor itself. Unfortunately I have never had a problem with an auto.....
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