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A friend drives a 2002 NissAN Sunny FB15 Super saloon auto gear. Recently the auto box was repaired, but since then an interesting problem has developed which is probably not connected to the gear box issues. The car is perfectly stable most of the time. Idles nicely at 900 rpm with the AC on. But when you drive for a while and stop with the gear in D sometimes the idle just suddenly drops and the car stalls If you put the car into the reverse gear the same happens (this is from a standing stop) This behaviour is also observed when the gear is in neutral. Now a number of mechanics have tried to repair this and often they find it difficult to reproduce the problem. The last Lal Alawatte said he had replaced "some sensors" (my friend is not technically minded) and the car was ok for over 2 weeks. Then the problem returned. When I had a look at the she was able to demonstrate the problem in the above scenarios (so clearly she hasn't gone cookoo). Since this has already been taken to a number of mechanics I wasn't sure what to suggest. Any of you guys had the same problem or any ideas?