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

[gooffeyguy]

Yes, there is a section of flexible rubber hose, but it won't provide enough slack/stretch to allow the end of the hardline to fit out of the hole. I assume I need to remove the bolted-in crossmember near the back of the engine.

Probably have some free time in a month or so.

I'd just cut it in the middle of the rubber hose then use a brass barb hose connector with spring type hose clamps on it. Or take the opportunity to install a remote trans filter and use those lines to go to/from the filter housing

 

[Charlie207]

I'd just cut it in the middle of the rubber hose then use a brass barb hose connector with spring type hose clamps on it. Or take the opportunity to install a remote trans filter and use those lines to go to/from the filter housing

That's an interesting idea, and I'll look into that.

 

[gooffeyguy]

Most definitely! I've needed to fix the inline I made just so I could run the physical sensor, one end has been leaking for quite a while, especially when it goes over the base 43 PSI.
Apparently the ethanol was eating away at the black nylon or something.
So I need to fix that before I put it back on anyway.


I just need to put enough miles on the dumb thing to get all the sensors ready for the smog check.

But the stock intake back on and the stock tune also... Put in 20 gallons($125) of regular, physical sensor eventually settled on 22%.
With the stock tune and virtual sensor, it reads 3.5%. .. close enough to Eaton or less that it's not ******* it off, I might have to put another $50 in to water it down some more though, keep the fuel trims happy.

Forgot how gutless it feels on a stock tune. It's noticeably slower, especially in the mid-range and it doesn't feel like it pulls at all up top anymore.
And the shifts are so soft it's disgusting, even wide open you don't feel anything...

Kind of forgot how loud the intake really was as well. The stock intake is ridiculously quiet in comparison. But I kind of wondered what this exhaust setup sounded like, but I can never tell because the intake was so much louder. Haha

Pretty sure I'll be able to use the Corsa intake box with the Whipple intake tube, the couplers on the factory tube and the corsa tube line up almost perfectly.

So if that hose going to the alcohol sensor wasn't leaking, could you have just left the sensor installed and switched the tune back to stock for the test?

 

[gooffeyguy]

Put gas in it today.

24 gallons of E85 cost me $108

$4.50/gal

Thanks Joe, errr I mean Vlad

 

[RooTBeeRthe1st]

So if that hose going to the alcohol sensor wasn't leaking, could you have just left the sensor installed and switched the tune back to stock for the test?

Not if the tech did his job properly. That'd be part of the "visual" inspection, anything not OE or CARB approved basically... although I am going to leave the catch an and see what happens.
No one in their right mind should fail that...it's literally making the engine run cleaner by not burning those vapors through the engine.

If they fail it from that, I can undo two hose clamps and move one hose and it'll be "stock"

 

[RooTBeeRthe1st]

Put gas in it today.

24 gallons of E85 cost me $108

$4.50/gal

Thanks Joe, errr I mean Vlad

Like 3.80 here

 

[George B]

Not if the tech did his job properly. That'd be part of the "visual" inspection, anything not OE or CARB approved basically... although I am going to leave the catch an and see what happens.
No one in their right mind should fail that...it's literally making the engine run cleaner by not burning those vapors through the engine.

If they fail it from that, I can undo two hose clamps and move one hose and it'll be "stock"

If it’s that easy why even take the chance?

 

[RooTBeeRthe1st]

If it’s that easy why even take the chance?

Because they shouldn't fail it.
But if they do I can just pull it off and retest right after.

 

[Drwinlied]

Thought about trading it in for a ctsv coupe I saw at a local dealer. Kept driving...but I find myself having "new tasks" that involve driving by that v often now...thankfully I leave for vacation in a few days and it will likely be sold by the time I return. Crisis averted

 

[Rocket Man]

Put gas in it today.

24 gallons of E85 cost me $108

$4.50/gal

Thanks Joe, errr I mean Vlad

You can thank the oil companies. They charge what they can, and have been exposed admitting they don’t want to drill the thousands of open permits they have in the US, they want supply to stay low so they can make more record profits.

 

[gooffeyguy]

You can thank the oil companies. They charge what they can, and have been exposed admitting they don’t want to drill the thousands of open permits they have in the US, they want supply to stay low so they can make more record profits.

But everything's Vlad's fault

Dontchyaknow

 

[gooffeyguy]

Not if the tech did his job properly. That'd be part of the "visual" inspection, anything not OE or CARB approved basically... although I am going to leave the catch an and see what happens.
No one in their right mind should fail that...it's literally making the engine run cleaner by not burning those vapors through the engine.

If they fail it from that, I can undo two hose clamps and move one hose and it'll be "stock"

Damn, that's gotta suck.

 

[CaptainAmerica1]

You’re an idiot

 

[RooTBeeRthe1st]

You’re an idiot

You'll have to be more specific.

 

[lowh07]

Just a pic

 

[Geotrash]

Just a pic

View attachment 373956

Really, really clean. Love it!

 

[RooTBeeRthe1st]

Well, got about a hundred miles on it so far, everything is ready except for the EVAP system...

Sort of running out of time here, not sure if it needs more cycles or if I do have an issue even though there's been no check engine light.

 

[Fless]

Well, got about a hundred miles on it so far, everything is ready except for the EVAP system...

Sort of running out of time here, not sure if it needs more cycles or if I do have an issue even though there's been no check engine light.

Most states allow one monitor to not be set. Differentiate between being "ready" and being "complete."

It looks like your evap is ready to test, it just needs the specific drive cycle to complete the test. There are very specific conditions for the test to take place -- don't quote me on the specifics -- things like the fuel tank being between 1/8 and 7/8 full (some people recommend 1/4 to 3/4), a cold start where the IAT and the coolant temp are within 8 or 10 degrees, two speed cycles up to 55 mph, then coast down to 25 mph without using the brakes (or something like that, without getting run over). Anyway, it's not going to test unless all the conditions are met, and if your check engine light isn't on you should be good to go.

 

[CaptainAmerica1]

You'll have to be more specific.

Was drinking last night and cannot for the life of me remember why the **** I would say this!? Apologies gentlemen. Please forgive me….

 

[George B]

Was drinking last night and cannot for the life of me remember why the **** I would say this!? Apologies gentlemen. Please forgive me….

There are worse things to say when drunk…