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Oh sorry please ignore my comment about MAF's.
Anyway I would bet the rough idle is caused by wrong air/fuel mixture, which can be caused by unmetered air in combustion chambers or faulty injectors.
JX5M, Have the spark plugs ever been changed? What are the Injector index numbers? Did they change Bank 1 or 2 intake pressure sensor or both? Did the dealer find any fault codes?
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