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

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Sam Harris

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In my quest to appease the fuel vapor nazis.. er, the eh CEL P0455.. I replaced the vapor purge valve solenoid today. AC Delco part of course. Man, this intake is embarrassingly dirty. I think I need a need a TBSS, or NNBS intake to replace it.. [emoji3166]... but in the meantime, hoping this settles the CEL down and I don’t have to go further with the more fun parts replacements.
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Fless

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In my quest to appease the fuel vapor nazis.. er, the eh CEL P0455.. I replaced the vapor purge valve solenoid today. AC Delco part of course. Man, this intake is embarrassingly dirty. I think I need a need a TBSS, or NNBS intake to replace it.. [emoji3166]... but in the meantime, hoping this settles the CEL down and I don’t have to go further with the more fun parts replacements.
1438484167f5711e503a5bb5024b8731.jpg






f387800090e3a0eb610600db17f3b56f.jpg
7a1bf87d1563f3bbcc96554089eb3758.jpg
31c3e11c748b2ff9db70668dbcff3190.jpg
709307a83712ef73a6248feb9cbcfea4.jpg


I was kind of wondering if the Tech 2 menus for our years would have an emissions test to pull vacuum on the whole system to see if it does it and holds. I've had the occasional "tighten gas cap" message, too. I'll have to give it a try with my Tech 2 next time I drive it and think of it.
 
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treehan77

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As long as it wasn’t full of charcoal pellets to the purge you’re probably good

In my quest to appease the fuel vapor nazis.. er, the eh CEL P0455.. I replaced the vapor purge valve solenoid today. AC Delco part of course. Man, this intake is embarrassingly dirty. I think I need a need a TBSS, or NNBS intake to replace it.. [emoji3166]... but in the meantime, hoping this settles the CEL down and I don’t have to go further with the more fun parts replacements.
1438484167f5711e503a5bb5024b8731.jpg






f387800090e3a0eb610600db17f3b56f.jpg
7a1bf87d1563f3bbcc96554089eb3758.jpg
31c3e11c748b2ff9db70668dbcff3190.jpg
709307a83712ef73a6248feb9cbcfea4.jpg
 

tRidiot

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What is the Corvette servo thing?

<edit> Never mind, found some stuff, reading up on it now...
 

Rocket Man

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In my quest to appease the fuel vapor nazis.. er, the eh CEL P0455.. I replaced the vapor purge valve solenoid today. AC Delco part of course. Man, this intake is embarrassingly dirty. I think I need a need a TBSS, or NNBS intake to replace it.. [emoji3166]... but in the meantime, hoping this settles the CEL down and I don’t have to go further with the more fun parts replacements.
1438484167f5711e503a5bb5024b8731.jpg






f387800090e3a0eb610600db17f3b56f.jpg
7a1bf87d1563f3bbcc96554089eb3758.jpg
31c3e11c748b2ff9db70668dbcff3190.jpg
709307a83712ef73a6248feb9cbcfea4.jpg
Hate to tell you but those other intakes are ugly too. You need one of these. They really dress up the engine bay.:cool:FAD35F50-7B05-4CB8-8B8D-A85FB2F95B91.jpeg
 

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