Hello Guys,

I have Nissan Sunny(Japanese Model) 2006 model with automatic transmission here in Saudi Arabia. From past Couple of months i am having issue of rough idle whenever i stop at signal or in traffic jam, RPM drops to almost zero and car start shaking. On the other side car runs very smoothly and no issue while driving on highways. I have changed following parts but still no change.

1. Crankshaft / Cramshaft Sensor

2. MAF Sensor

3. Oxygen Sensor

4. Spark Plug

5. Coils

6. PCV valve

I already spend a alot of money in replacing those parts but havent got the problem fixed. I did all king of computer scanning but there no error code shows up. sometimes problem happens in morning time or when i take out the car after 4-6 hr interval. sometimes it occurs every time. Sometime turning the AC off stop stalling but sometime it happens without AC.

Kindly suggest me a solution.

Thanks