misfire question?
misfire question? I have a 2002 chevy 1500 with 5.3. I am having running problems. SES light blinks at idle ant the truck runs like ***. Put new plugs and wires and still nothing. Hooked up scanner and found in "live data" that 1,3,5,7 all have misfires. I have checked compression, fuel inj, and even did a leak down test and everything checked out good. If an one has had this problem I would really like to know what you found. By the way the o2's seem th be working fine.....so any one??? PLEASE!!! 
