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

[gooffeyguy]

Late to the party, but I wonder what Wes, took out the cat? Sticky fuel injector? You can turn them on and off and check your fuel pump trims too. Your LTFTs @ 7, if they stay there for a long time are off. What's your alcohol content? If that number is off, you can reset the Fuel Trims and Fuel Composition and start her over again.

My last two fill-ups have been with 93 octane (due to low prices) and my alcohol % on this current tank is 0.0

Is it normal to have NO alcohol content in regular gas?

I am getting better gas mileage than usual though,... Lol

2001 Yukon SLT
2012 Yukon Denali XL
2011 Yukon Denali RIP 5/20/18

 

[avalonandl]

Wes, why do you have an LS7 TB on your engine...?

 

[wendal]

Well, it's nearing time to purchase my shorty headers. I'm down to the following choices, and would like any opinions you guys have. I know @kbuskill has the JBAs, but they're the costliest of the bunch. Gibsons are on sale, and that's where I'm leaning right now. Any input would be great.

 

[Mickey_7106]

Other than making the engine bay look pretty and noisier, those shorties won't do anything for you..

 

[Doubeleive]

Wes, why do you have an LS7 TB on your engine...?

Just because , it's never been a problem

 

[Doubeleive]

had 2 new magnaflows put on it today, the last couple times I looked the long terms were at 7 both times, it's weird that as soon as the p0430 code cropped up the mileage went up from 8 to 9.5, I can take a look at it some more tomorrow with the tech2

I don't think the fuel trims are stuck, I think what I was seeing was the data display showing 7 until it starts receiving data, the long terms are around 5 which should be good as far I am able to determine so far

 

[Doubeleive]

Here is some intake data I have no clue on this stuff but one shot is at idle and the next is at 50mph

 

[Doubeleive]

Wes, why do you have an LS7 TB on your engine...?

Just because , it's never been a problem

Wes, why do you have an LS7 TB on your engine...?

I guess the real reason is eventually I would like to upgrade stuff a bit, maybe port the intake and install a better cam, the engine is still under warranty till March of next year so I haven't really messed with it yet and I don't have a *** of cash to throw at it all at once so I have to do it a little at a time

 

[Tonyrodz]

Just because , it's never been a problem

I guess the real reason is eventually I would like to upgrade stuff a bit, maybe port the intake and install a better cam, the engine is still under warranty till March of next year so I haven't really messed with it yet and I don't have a *** of cash to throw at it all at once so I have to do it a little at a time

The throttle body doesn't void the warranty?

 

[Mickey_7106]

Was it pnp or did you have to modify to fit?

Just because , it's never been a problem

I guess the real reason is eventually I would like to upgrade stuff a bit, maybe port the intake and install a better cam, the engine is still under warranty till March of next year so I haven't really messed with it yet and I don't have a *** of cash to throw at it all at once so I have to do it a little at a time