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

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Doubeleive

Wes
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This abs/brake light thing is annoying me now. I googled and I read something about there might be a TSB about it. Anyone know? Or a list of TSB's for our gmt 800's?
Keep getting these codes--C0269 C0227 C0226
Sounds like you have a erratic front left abs sensor, try swapping the left & right sensors and see if the code follows
 

Doubeleive

Wes
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The first code is #3 cylinder having a fuel-related problem and the other 2 are TPS sensor issues. Didn’t you have an ongoing TPS problem causing reduced engine power? You should buy a subscription to www.alldatadiy.com, it’s cheap and it’s like having the service manual only it’s online so it’s super easy to use. It covers TSB’s and troubleshooting them, wiring diagrams, etc etc. It’s really worth the $30 a year.
o_Oo_Oo_Oo_O
 

Tonyrodz

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The first code is #3 cylinder having a fuel-related problem and the other 2 are TPS sensor issues. Didn’t you have an ongoing TPS problem causing reduced engine power? You should buy a subscription to www.alldatadiy.com, it’s cheap and it’s like having the service manual only it’s online so it’s super easy to use. It covers TSB’s and troubleshooting them, wiring diagrams, etc etc. It’s really worth the $30 a year.
The codes are all brake and abs related.
 

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