My engine sounds rough around 2000 rpm, service engine soon light is on. Hooked it up to the computer says it’s the mass air flow sensor, replaced it. No luck. Any help?

 

You most likely have a vacuum leak (assuming oen maf sensor)

 

I had a rough idling car and it took awhile to track down. On my car, 2011 w/approximately 165K, there was a hose that had developed a hole in it. Looking at the engine standing in front of the car it was located toward the rear of the engine more toward the left side. I went to the local auto parts store, bought a foot of vacuum rated vacuum hose and replaced it. Fixed my problem.