for the past two weeks i will be driving my car and the rpms will go from around 2800 and jump to 700 and back to 2800 and want to stall on me...my brother and father are mechanics and have been working on the car for the last week trying to figure the problem out...so far they ruled out the computer, distributer, o2 sensor, EGR valve, put in a new gas and oil filter and PCV valve....the car has also being throwing a Mass Air Flow Sensor code which my brother has changed multiple times not solving the problem....if any one has any ideas please get back to me :fingersx:

They have already ruled out the computer?

yea the computer is fine...

Idle air control motor... check that out.