Y'all my Hummer out of nowhere I cranked it up after work and it started sputtering I thought it might have been out of gas well I was able to limp it home using the brake and the throttle it's running as if it's misfiring it won't even stay idling unless I give it throttle I change the plugs the wires the mass air flow sensor clean the throttle body and check the fuel pressure I don't know what to do please help me I can't afford to take it to a mechanic and it's my only vehicle and I have to pick up my son for the holidays plus his birthday is on Monday

 

Did the "Check Engine" light come on? If so and you do not have a code reader you can take it to almost any auto parts store and they will read them for free. A quick internet search of the code will may give you some insight to what is wrong.

Best of luck!