For the Techs. Slight Power Loss
I wanted to see if someone could help direct me. Maybe a Tech or someone better mechanically than myself. The problem seems like a slight power loss over the past couple of weeks and maybe just a little more engine or air noise to the center or center right of the engine compartment. This is while sitting in the driving position inside the truck. Basically boost seems good maybe even a little higher due to colder weather. The issue is when i take off from a stop and lightly apply the gas i seem to have just a little more power till the turbos spool up to 10psi. At this point engine noise rises (sounds kinda like air noise) but power seems to drop just a bit. So i feel like i need to give her a little more pedal to maintain the same acceleration before the turbo psi starting moving up. Also, i've notice that in the past taking off from a light (gradually take off not fast) the truck would start off with one sound and then briefly have a different diesel sound 1-2 seconds then go back to the original sound. This is hard to explain but I noticed it in all the new trucks i drove when looking for mine. Anyway, the 2 tone sound is now gone but now i seem to loose some power starting around 10psi and up but am experiencing more air or engine noise. Could i have a air leak somewhere thats causing this issue or could it be something else? By the way, if i floor it the power is not bad but still seems a little off. I've been running the Spartan DPF delete 75hp tune for about 6 months now and do drive the truck pretty easy. Everything else seems to be ok thus no codes etc.
Thanks for the help!