Chevy and GMC Duramax Diesel Forum banner

1 - 13 of 13 Posts

·
Registered
Joined
·
6 Posts
Discussion Starter #1
I have just installed a diablo sport tuner, cold air intake and a 4 inch exhaust and the thing still runs like it's stock to me. What am I doing wrong????
 

·
Registered
Joined
·
335 Posts
the exhaust and intake wont do too much. what level is your tuner set on?
 

·
Registered
Joined
·
6 Posts
Discussion Starter #3
It is set at extreme just want to try it out. Everyone says it should run like hell but I can't tell a difference!
 

·
Banned
Joined
·
5,738 Posts
Return it to stock and reload it.
 

·
Registered
Joined
·
335 Posts
yeah must have not loaded on there. there is no way you wouldnt be able to tell a difference.
 

·
Banned
Joined
·
5,738 Posts
What year is your truck? Fill out your signiture so we can better help you.
 

·
Registered
Joined
·
6 Posts
Discussion Starter #7
Thanks guys. I'm new here and the help is appreciated a lot I'll try it in the morning and let y'all know
 

·
Banned
Joined
·
5,738 Posts
Thanks guys. I'm new here and the help is appreciated a lot I'll try it in the morning and let y'all know
Reload a lesser tune, the exreme requires some supporting mods to run correctly.
 

·
Registered
Joined
·
6 Posts
Discussion Starter #9
What kind of supporting mods?
 

·
Banned
Joined
·
5,738 Posts
Lift pump and boost increase valve.
 

·
Registered
Joined
·
6 Posts
Discussion Starter #11
I do have the boost increase valve. Which brand of lift pump would you recommend?
 

·
Banned
Joined
·
5,738 Posts
Air Dog II DF 165, it is made by pureflow. It is the best there is.
 

·
Registered
Joined
·
6 Posts
Discussion Starter #13
Thanks again I will try that for sure and get back with you
 
1 - 13 of 13 Posts
Top