Hard starting 6.7

[dualsportin]

The most recent development with my 2007. 5 6. 7L is hard starting and rough running when cold, no codes thrown, would a new fuel filter be a good place to start?

 

[Hoefler]

If you have not changed in the last 15,000 miles, it would be.

 

[dualsportin]

Thanks Hoefler, I'll check my records to see when that was.

 

[HBarlow]

Why is your forum name "noregens?" How many miles on your truck? Is it modified?

 

[dualsportin]

Because the actual regens are so invisible I thought there weren't any, but apparently there were. Only mods are Banks muffler delete and cold air kit with scoop. On the third turbo, some egr difficulties and numerous reflashes, latest code was P2121, TPS sensor. Its got almost 31g.