so I just swapped out the injectors on my 8.1L. It now has 60# siemans, getting ready for the turbo in a couple days. I am saving a little extra cash to get a Black Bear custom tune, but dont have the $$$ at the moment, so i had the people at DiabloSport make me a custom tune for the injectors and turbo. So I loaded the tune and it started right up. But when you come down off of any more than idle RPM's, it sputters and almost dies. It has died a couple of times. Is it in the tuning, or something else. The truck runs smooth, but is missing alot of power, maybe just cause I am running a tune made for boost and it isn't seeing any boost yet.

 

I doubt it has anything to do with boost. 60 pound injectors are not the easiest to get to idle, I think your idle issue will go away once you get a better tune.

 

x2!
if it's tuned for boost though and your not running any, it will run pig rich

 

ender, get that damn turbo put on!!!! then drive up here at school so i can see what shes got, before i head home for summer!

 

Alright, that makes me feel alot better, THANKS
Dang it, I am TRYING...its so f'ing hard to do all this **** outside laying in a pile of dirt...lol. If I don't get her done by the end of school, I'll be up towards your home, one to see Justin for the tune, and two, to see my brother...sometime

 

HAHA 1. if i had any gas in the truck and 2. if i had some cash in the wallet and no exams next week id come down and help

no big deal, back home would be better, i know a few people we could go get to play

 

Can U wire the injectors backwards??? I just wired them the same as the stock were...i think.

 

A boost tune will have NO effect on idle


No your cant mess the wiring up.

 

a goodboost tune.

they may have not scaled the injectors right. there is no telling what they did. did you ask them what exactly they changed in your tune.

 

kinda confusing, my bad I meant under driving conditions and not so much at idle as far as running rich.