What did you do to your NBS GMT800 Tahoe/Yukon Today?

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Tonyrodz

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I have a question, I'm going to get an in person tune this Sunday by BBP and I was going to get the 93 tune, is it ok to go to the event with 87 in my tank?
I read on here that some guys don't think the 93 tune is worth the extra $$ spent per gallon compared to the 87 octane tune. Think it's worth the extra $$ ?
 

M1Gunner

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Just got them read and it's low voltage to the passenger side rear O2 sensor and he said it's probably just a loose connection
That was the only code?

Even though the code is bank specific, have you made any sort of exhaust mods?

Should've asked you to take pictures of freeze frame data. I'm assuming whoever pulled the codes deleted everything too... low voltage doesn't mean a loose connection. The o2 sensor was just merely saying hey we've got a lean condition. This is where the freeze frame data would be extremely handy to see what's goin on and if the o2 sensor is lying or not.

A lot of people see an o2 sensor code and automatically want to condem the sensor but it's just a messenger. I'm sure you've heard the phrase "don't shoot the messenger" which applies perfectly here.

You said this was during the 0-60 right? Well there's a lot that could cause a lean condition to pop. Any sort of leak where oxygen can make its way into the system can cause it to go lean. An issue with fuel delivery can cause it to swing lean. Etc.

It's bank 2 specific so again that freeze frame data would be golden.

How's your idle?
 

Rocket Man

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I have a question, I'm going to get an in person tune this Sunday by BBP and I was going to get the 93 tune, is it ok to go to the event with 87 in my tank?
Nope, you'd better get to driving until you burn all that gas up lol. Just kidding. Justin told me at one point that I could run 87 with my 93 tune and it wouldn't damage anything but I wouldn't get the advantage of the tune. You might want to email them and ask though. How much gas is in your tank?
 

02_Tahoe

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Nope, you'd better get to driving until you burn all that gas up lol. Just kidding. Justin told me at one point that I could run 87 with my 93 tune and it wouldn't damage anything but I wouldn't get the advantage of the tune. You might want to email them and ask though. How much gas is in your tank?
More than 3/4 of a tank....I'll email Justin. If I need 93 then my whole Saturday will be spent driving
 

02_Tahoe

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That was the only code?

Even though the code is bank specific, have you made any sort of exhaust mods?

Should've asked you to take pictures of freeze frame data. I'm assuming whoever pulled the codes deleted everything too... low voltage doesn't mean a loose connection. The o2 sensor was just merely saying hey we've got a lean condition. This is where the freeze frame data would be extremely handy to see what's goin on and if the o2 sensor is lying or not.

A lot of people see an o2 sensor code and automatically want to condem the sensor but it's just a messenger. I'm sure you've heard the phrase "don't shoot the messenger" which applies perfectly here.

You said this was during the 0-60 right? Well there's a lot that could cause a lean condition to pop. Any sort of leak where oxygen can make its way into the system can cause it to go lean. An issue with fuel delivery can cause it to swing lean. Etc.

It's bank 2 specific so again that freeze frame data would be golden.

How's your idle?
My idle is the same as when I bought it, and he didn't clear the code
 

02_Tahoe

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I read on here that some guys don't think the 93 tune is worth the extra $$ spent per gallon compared to the 87 octane tune. Think it's worth the extra $$ ?
I've seen the same things, but I read one review where they guy said Justin told him that the performance benefits were much greater, but then again, I'm pretty sure @Red Rocket told me this, he has the auto cal and can switch between tunes and he noticed no difference. And the lower octane tune is 89 and 87 in the same tune correct?
 

Rocket Man

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I've seen the same things, but I read one review where they guy said Justin told him that the performance benefits were much greater, but then again, I'm pretty sure @Red Rocket told me this, he has the auto cal and can switch between tunes and he noticed no difference. And the lower octane tune is 89 and 87 in the same tune correct?
My first try with the 91+ tune didn't impress me so much, at least not enough to justify the extra cost for premium. But I reinstalled it again later when I needed to start running premium for my blower install; since I needed to run premium I figured I might as well have it tuned for it. That time I did notice a bit more power, I believe. Still would be a toss-up for me. And yes the lower tune is 87-89 and the upper tune is 91+.
 

jarydM

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Changed the oil and the wipers and checked fluid in prep for a 500+ mile trip.

then I backed off my ramps and forgot I left the bucket under the truck, and dumped all the oil all over the driveway :worthy:

in other news, the power steering leak looks to be near the booster, either that or its just leaking from everywhere. I cleaned up underneath to see if I can pin-point an area.
 

BigDaddy13440

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:doh2:
Changed the oil and the wipers and checked fluid in prep for a 500+ mile trip.

then I backed off my ramps and forgot I left the bucket under the truck, and dumped all the oil all over the driveway :worthy:

in other news, the power steering leak looks to be near the booster, either that or its just leaking from everywhere. I cleaned up underneath to see if I can pin-point an area.
 

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