i just got a 2001 chevy 2500 hd and im having issues getting it to run right
it has a new fuel filter
new fuel pump
new plugs
new injecters
whole fuel systems been gone through and i got the codes for maf, misfire on 7 and 8, 02 sensor
i cleaned the maf new plugs and swapped the wires on 7 and 8 and still rough idle and no power in drive when in drive it sounds like a john deere from the 50s