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

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Rocket Man

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I got my American Racing headers today. Now I have a dilemma. When I installed my AEM wideband gauge, I followed along with some advice and installed the sensor downstream of the cat on the driver side and had the downstream sensors tuned out. But it seems that my readings aren't accurate since they fluctuate wildly, and the instructions say it should be installed upstream. So I have 3 choices- install it the way it is now, install a bung upstream and plug the downstream bungs or install a bung upstream, buy new downstream sensors and have them turned on in the tune. Any suggestions?

IMG_6771.JPG
 

bottomline2000

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I got my American Racing headers today. Now I have a dilemma. When I installed my AEM wideband gauge, I followed along with some advice and installed the sensor downstream of the cat on the driver side and had the downstream sensors tuned out. But it seems that my readings aren't accurate since they fluctuate wildly, and the instructions say it should be installed upstream. So I have 3 choices- install it the way it is now, install a bung upstream and plug the downstream bungs or install a bung upstream, buy new downstream sensors and have them turned on in the tune. Any suggestions?

View attachment 85449
You're going to have issues trying to run the rear o2 sensors with headers since the cats are so far downstream. BB tuned mine out and will prob recommend the same for you. Maybe it's not as bad with the ARH headers since they are high flow cats for the af gauge.

Sent from my SAMSUNG-SM-T377A using Tapatalk
 

Rocket Man

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You're going to have issues trying to run the rear o2 sensors with headers since the cats are so far downstream. BB tuned mine out and will prob recommend the same for you. Maybe it's not as bad with the ARH headers since they are high flow cats for the af gauge.

Sent from my SAMSUNG-SM-T377A using Tapatalk
My downstream ones are already tuned out.
 

BigDaddy13440

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Tonyrodz

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Just ordered 4 quarts, and the free can of Kroil.

Been using SeaFoam for a few years, and recently have seen an improvement in both power and mileage by using Lucas additives. We'll see if the Kreen does any better!
Does it get added to the oil or the fuel tank?
 

HiHoeSilver

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Just ordered 4 quarts, and the free can of Kroil.

Been using SeaFoam for a few years, and recently have seen an improvement in both power and mileage by using Lucas additives. We'll see if the Kreen does any better!

It will. The Kano folks have incredible products.
 

Tonyrodz

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