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

Received an updated tune from BBP. They said the P219A code was an issue with one of the Bank 1 (driver's side) fuel injectors. I'll pull them out and try to clean them. I asked about upgraded injectors, and if my current tune could support the next size up (currently have 32lb.), and they recommended Denso 50lb. which are less expensive than I had thought. I'd need a new tune for any new injector, and may just buy the full set in the near future.

Still am dealing with a cam CEL, but I might try swapping in a new sensor to see if that goes away.

Haven't touched the CAN issues yet.

I used this video to check and clean some old ones I had in a shelf for another car. seemed to work pretty good.

j91z28d1 said:

I used this video to check and clean some old ones I had in a shelf for another car. seemed to work pretty good.

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That's exactly what I'm going to do. Need to run out to Harbor Freight and get some supplies.

j91z28d1 said:

I used this video to check and clean some old ones I had in a shelf for another car. seemed to work pretty good.

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I like that dude been a long time subscriber.

Just got back from a trip to Yellowstone and the Tetons... so off to clean out the truck.

YukonGold12 said:

Just got back from a trip to Yellowstone and the Tetons... so off to clean out the truck.

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You were in my neck of the woods.
I'm sure you have plenty of bugs all over the front end.

Grady_Wilson said:

You were in my neck of the woods.
I'm sure you have plenty of bugs all over the front end.

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Soooo many! Better bugs than a deer though.

YukonGold12 said:

Just got back from a trip to Yellowstone and the Tetons... so off to clean out the truck.

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Which push bar / bull bar do you have on the front?

YukonGold12 said:

Just got back from a trip to Yellowstone and the Tetons... so off to clean out the truck.

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how was the animal population? I went last year in July wasn't hardly any bison or much of anything, when by comparison of going 10-12 years ago there were bison herds all over, elk, moose, bears, you name it only thing I didn't see was a wolf but they had only been re-introduced not long before then.

man I see so many posts of automatic trannys going bad left and right. I thought the 4l60 had a bad rep when used hard, all these newer 6 and 10 speeds seem to lunch themselves at $8-10k a pop every 150k miles less. at least the poor. 4l60 lasted forever if just daily driven.

what happened to drivetrain reliability the last few generations across all these automakers.