Chevy Slverado 1500 run and dies
got a 1987 1500 silverado w/ 5.7 193000 mils, put gas in it Thursday after work every thing seems fine them I felt it start to run a little not right but got home fine (12 miles away ). Next morning tried to go to work but about 2 miles down the road truck started losing power and died . Tried starting and stated like a champ ran it about a mile started loosing power let up on the gas engine cleared up( truck is losing speed) but as soon I pressed on the peddle it would act like its flooding out wont go coast to a stop dies, then starts fine !! Got po 141,300,440 code, I replaced 02 down stream sensor, new plugs.... any ideas ??