What did you do to your NNBS GMT900 Tahoe/Yukon Today?

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

iamdub

Full Access Member
Joined
Apr 23, 2016
Posts
20,821
Reaction score
44,943
Location
Li'l Weezyana
You don't get rust in Weezyana? Figured with all that humidity

Mine looked clean like that when I got it in August 2018. Still does for the most part, but some of that black coating on the frame is getting some light brown areas near the edges and corners. I think it's from driving in the **** they put down when it snows.

Humidity is mostly just water. Salt is the killer. Actually, those that live on the coast get some rust, but its not like the rockers and wheel arches rotting out within the first ten years like the areas where the roads are salted.
 

iamdub

Full Access Member
Joined
Apr 23, 2016
Posts
20,821
Reaction score
44,943
Location
Li'l Weezyana
So much real-estate to install a wideband O2.

Me: one of these to a part that i won't name is sounding very tempting right now.
View attachment 343680

View attachment 343681

I don't even know how to tune with what I have now! I do have the Pro Features hardware for my MPVI2, but I don't know if they're even supporting it in the software yet. I do want a wideband, though. One for each bank, if possible. I might could put them where the downstream O2 sensors are since they're just there to plug the holes. Or put the regular upstream ones in the downstream spots and the widebands in the upstream spots? It only like 6-8 inches of difference.
 

iamdub

Full Access Member
Joined
Apr 23, 2016
Posts
20,821
Reaction score
44,943
Location
Li'l Weezyana
Got rockers installed last night!
View attachment 343682

Modified the valve covers slightly.
Looked to be a tight fit in there, got the idea from one of the Q&A answers on summit racing.
View attachment 343683


All this work to perfect so many minute details, yet you're gonna roll with the old style rocker cover that might very well contribute to oil consumption...


:Nonono:
 

Just Fishing

Can't fix stupid
Joined
Aug 30, 2020
Posts
3,926
Reaction score
8,503
Location
Utah
All this work to perfect so many minute details, yet you're gonna roll with the old style rocker cover that might very well contribute to oil consumption...


:Nonono:

I actually looked at the current valve cover and it looks identical, am i looking at the wrong one?

Eta,
Looked again at the one i had saved.
Dorman 264-969

Looks real close, but the inlet is slightly different....
 

Just Fishing

Can't fix stupid
Joined
Aug 30, 2020
Posts
3,926
Reaction score
8,503
Location
Utah
I don't even know how to tune with what I have now! I do have the Pro Features hardware for my MPVI2, but I don't know if they're even supporting it in the software yet. I do want a wideband, though. One for each bank, if possible. I might could put them where the downstream O2 sensors are since they're just there to plug the holes. Or put the regular upstream ones in the downstream spots and the widebands in the upstream spots? It only like 6-8 inches of difference.

I just learned how to use a wideband with out pro features!

You can add it in hp tuners to a laptop via usb to serial adapter.

Apparently you can also log your fueling map and it will make corrections that you can paste into your actual fueling map!

My ebl flash does that, but it also writes it to the tune file for you.
I wish hp tuners was that slick.

I still have a loooong ways to go, but things are already making more sense.


Eta, you can replace your narrow band with them and wire a harness from the little processor deal to the orignal harness.
But the recommended is to install a **** just for the wideband.

Goat rope garage on youtube.
I really need to be in the mood for it tho.
 

Forum statistics

Threads
132,315
Posts
1,865,849
Members
96,908
Latest member
Boosyed96GSX
Top