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

[89Suburban]

Swapped out my lower driver seat cushion with a direct replacement. Man my ass thanks me!!

I swapped the seat back foams too from pass side to driver's side.

 

[Fless]

Bathed the engine bay in carb cleaner hoping to find a leak. Did not. The longer it sits the worse it starts; got service stabilitrack flashing engine light today when starting and pegging3k to keep running. Went away after running smoothly.

Maybe pre02 cats are clogged? I doubt it, because raw fuel dumps out the exhaust when it's stumbling on start. Fouled plugs then?

Parts trickle in over the next few days. Headers today, injectors tomorrow. Already have plugs/wires. Losing faith over here. Might hook up my sxs and atv on the trailer and drive to a dealership and give it all away for a car with a warranty lol (that's mostly a joke)

What does the fuel pressure look like at the rail, KOEO? What do the fuel trims look like?

EDIT: are you having to use clear flood mode when starting?

 

[Drwinlied]

What does the fuel pressure look like at the rail, KOEO? What do the fuel trims look like?

I checked a few days back on a cheap obd2 code reader and st was trying to lean it out to the point of -4ish iirc.

Didn't check pressures. I don't know how accurate that cheap reader is. I'll find my handheld tuner and check trims and pressures, as maybe that diablo is slightly more accurate.

 

[doc5339]

Grabbed some Mobil 1 5w30 High Mileage Extended Performance, AC Delco UPF48R oil filter, AC Delco A3181C air filter, and a Fel-Pro 70820 drain plug gasket for next oil change.

 

[Drwinlied]

Koeo Fp 52.x and drops to 49.x after 2 mins an likely continues to an extent. Idle fp steady 43.x

If I shut off and reprime the system fp is at 57 and climbs to 72+ over time w koeo

Most sensor readings look normal to me, save for the stft's being a bit jank and the eth% at 52.9. Maf is clean as a whistle.

No flood clear used to start, but maybe it needs it

Also sorry for sullying up thus thread. I know it isn't the right place. I honestly thought this would clear up and be a non-issue, as this is not the first dieselgate in this family, but it is definitely taking the longest to repair. Again, apologies.

 

[Fless]

Koeo Fp 52.x and drops to 49.x after 2 mins an likely continues to an extent. Idle fp steady 43.x

If I shut off and reprime the system fp is at 57 and climbs to 72+ over time w koeo

Most sensor readings look normal to me, save for the stft's being a bit jank and the eth% at 52.9. Maf is clean as a whistle.

No flood clear used to start, but maybe it needs it

Also sorry for sullying up thus thread. I know it isn't the right place. I honestly thought this would clear up and be a non-issue, as this is not the first dieselgate in this family, but it is definitely taking the longest to repair. Again, apologies.

If you're not running more than E10, but the PCM thinks you are, it's going to be adding fuel since it thinks it needs more. Your STFTs would be way high to the positive side, then, and that will cause over-fueling and it'll run like poo. If on normal (low ethanol) fuel, then the alcohol percentage needs to be reset with something like a Tech 2.

 

[Drwinlied]

If you're not running more than E10, but the PCM thinks you are, it's going to be adding fuel since it thinks it needs more. Your STFTs would be way high to the positive side, then, and that will cause over-fueling and it'll run like poo. If on normal (low ethanol) fuel, then the alcohol percentage needs to be reset with something like a Tech 2.

Yeah just good old 93. My stft's are in the negatives almost always at idle: from -1.xx thru -4.96% or thereabouts.

*Shrugs

Ima drive tf out of it and see what happens...

 

[Fless]

Yeah just good old 93. My stft's are in the negatives almost always at idle: from -1.xx thru -4.96% or thereabouts.

*Shrugs

Ima drive tf out of it and see what happens...

The alcohol content screws up the metering. And if the LTFTs are way off they might also affect how it runs, so if you can reset them, it might help. Without a scan tool I think they reset if you pull the battery power for a few minutes.

 

[Just Fishing]

Installed a set of Husky mud flaps. It will be nice not to have slush mounds and mud splatter built up on the fenders/rockers/running boards/exhaust tips.


View attachment 376310View attachment 376311

I think I have a set of those.
I took them off when I did the rear shocks.
damn sage brush was trying to rip them off as I crunched through it.

 

[Just Fishing]

I fixed some scratches on my passenger seat. These were probably caused by some web gear or suspenders during hunting season. I used an autoleatherdye.com kit. So far I only did that center panel where the scratches were as a test. You have to put the dye on THIN to prevent plugging up the holes. I put on two THIN coats. It came out pretty well.
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I did something like that to one of my rear captain chairs when removing a camp chair.
Nice scratch showing through to the leather underneath.
I used some holster dye I have on hand to touch it up.

I immediately regretted it; the dye was much darker than the seat.

Then I spent the next hour trying to thin the color out...