Misfire on DOD cylinders

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Ceejkay

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Back with a new to me truck. Just got a 2010 Escalade with the 6.2 awd. 180k miles. Been about 8 years since ive owned a gm and little rusty in the troubleshooting.

Truck idles decent in park. A little miss, But when in gear at let's say a stop for a min or 2 it starts misfiring bad and the stablitrack lights up and flashing cel. But as soon as I go within a few seconds it clears. Doesn't feel low on power. And the lights clear. Ran the misfire log on my tech 2, cylinder 4 is the worst followed by 7, 1, and 6. I believe those are all dod cylinders. I bought it used and they did plugs, oil and a few other things and it has the dod obd dongle but the dod delete doesn't appear to be done.

I did check the gap on #4 spark plug and it's good and looks new, they are ac delco plugs. Swapped #2 and #4 coil pack and wire and the problem didn't follow. I don't hear a lifter tap at all. I haven't pulled the valve cover to check yet as it's a little sketchy to do it in gear as that's the only time I really get it. The dod delete with a cam and a few other goodies are going to happen in the future but wanted to get a decent baseline. Any suggestions?
 

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