why wont my truck go when on the gas?
my 2003 chevy 1500 5.3 wont go when you are on the gas hard, it goes but when i try to
pass people it wont move any faster. It is throwing a mass air flow sensor code so i
unplugged that but it is bogging down and not going any where fast.i just did spark plugs, i
dont know if it is he cat clogged or it is a bad fuel filter or something else. any
suggestions?