another problem

so another problem with the 6.0, I just replaced the injectors and now I'm getting a p0275 and a p0676. I get the 676 is the number 6 glow plug which wasn't an issue before the new injectors and the 275 is a contribution code for cylinder 5. it doesn't feel like it's missing or idling funny and it's not smoking. the batteries and ficm are newer and new hpop. could it be a wiring harness. I think it might have had the cylinder 5 code before the injectors

I just checked, the cylinder 5 code was there before the injector change

Check the #6 glow plug for continuity to ground. Clear the codes, bet your cyl5 code doesnt come,back.

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I cleared it the other day and it came back, I'll try again and see. I do know that it wasn't on before the hpop and oil cooler change. shortly after I did those I did the injectors

it also has no issue starting. I get a little bit of smoke on cold days but that's it

could fuel filters cause a contribution code. mine have about 8k on them. I also saw a guy had an issue similar where the code returned after an injector change and his need up being a high pressure relief valve

so I cleared the codes and they both came back immediately. they are soft codes they don't throw the check engine light I have to go into my insight to see them. what I don't get is if the truck was actually having a cylinder 5 contribution issue wouldn't the truck idle bad and smoke and be down on power cause it fires right up and seems to run strong with no smoke