HPOP or injectors?
 

Yes having troubles with the 6.0 :argh:
It sounds like its misfiring. Hooked up to a tester and said 2 injectors aren't working. And sometimes it hops between 500-1500 rpm really suddenly. My ficm and an injector was just replaced 1000 km ago. Need help. Heard it could be the STC or HPOP.
:argh:

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Also it has less power ten my previous 6.0 and a lot worse fuel economy and needs more rpm to stay at highway speeds like 21-2200 rpm just to maintain up to everyone . I always use fuel conditioner every time I put any fuel in it

Bad injectors can definately cause a miss. The STC fitting going bad will cause a "no hot start" condition, if you haven't updated the fitting and the standpipes and dummy plugs keep in mind it is a good idea to replace them before they leave you stranded somewhere because they will fail eventualy

Would those be the problem?

this problem is most likely the injectors, have you tested the FICM? even though it is newer it is still good to test it, you can find the test procedure in the sticky section at top of 6.0 section

FICM is okay. Could it be fuel pump? But the codes say its a mechanical problem with injectors

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And I just noticed that there's a little oil leaking slowly can't find where from but it lands down by the rad on drivers side

Probably needs those 2 injectors replaced...

You can try adding some rev-x and see if it helps. A lot easier and cheaper than doing injectors...

There is no rev x around here. But would those 2 injectors make it hop like that?

Yeah... ever tried driving a V8 gas car and pulling two of the spark plug wires? Same idea...

Order rev-x online, that's how most of us get it. You can get it right from the site sponsors. Rev-X the company is a sponsor here. PM sunsetsky

Got mine here - also a site sponsor and free shipping

KT Performance