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https://www.rockauto.com/en/catalog/chevrolet,2015,silverado+1500,5.3l+v8,3307665,transmission-automatic,automatic+transmission+control+unit+(tcu),8480

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And look, injector flow rate is the least important of all the data. Especially at low speed/small pulsewidths, the offset & short pulse adder will have much more impact. Flow rate errors/unknowns...

What does "adjust 80lb injectors" mean?

I 'scoped it back when I still had the stock fan clutch, using the stock 2 Hz settings. The TB/Envoy OS will not output a valid PWM signal at 100 or 125 Hz using the 'PWM EV' setting, but will when...

Your other posts have been about a Gen 4, are you sure you want to be looking at data that's been converted over to Gen 3 format?

https://www.youtube.com/watch?v=mUq-K9jcaB8

GM acronymizes (why my spellcheck not like that word??) it as 'REP' - Reduced Engine Power.

Using some common numbers, 5500 RPM in 1st gear (2.48:1) with a 31" tire and 3.73 diff is 54.9 MPH. If I used the wrong numbers I apologize, but that's what you get when you ask things like this...

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It's currently active, or just one of the available PIDs?

Oh, if you get the scanner controls right and the fan is working, you will know it for sure because it will sound like... well, like a big 19" mechanical fan spinning at ludicrous speed.

Current-gen F1 V6 (yuk) turbos run 18:1 CR (rules-limited), 5.5 BAR boost ("or more"), at 1.3-1.4 Lambda.

You need an older editor version, 4.8.7 or older.

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The tune file is all stock (or close enough, I did not check the OS ID on the file I used for compare so the minor diff's could just be that), this is not a tune issue.

If you increase octane AND...

...and that file is nowhere near ready to begin any kind of tuning yet. Literally the only changes to the whole entire DTC list are for P0101-103, just for starters. EGR spark not zeroed (though EGR...

Actually, since the Offset data will be for "0 kPa VAC at 58 PSI", you should instead use the 300 kPa Delta column from one of the E38/E67-format tables. You will have to paste the ones that match...

You can't half-ass the important things in the factory PCM like you can with a Holley, if you want the driveability you're looking for. Important things like injector data (your flow rate table is...

Tuning the closed loop/non-PE parts with the NBs/trims and saving the WB for the open loop parts gives much better results. The NBs/trims will also tattle on the WB, and unless you have a second WB...

If you mean you disconnected the feed line from the rail (and therefore the regulator), and put the gauge in the end of the feed line, and ran the pump deadheaded against the gauge, that does not...

This is like all the Greatest Hits all rolled into one...

Having issues, but no mention of what the fuel pressure is, or that it's even been verified. MAF DTCs set to No MIL instead of MIL on...

If it's for the spark table, somebody please tell me how it's possible to be above 1.20g/s at anything other than WOT? And then, what benefit there is to having different spark timing at 1.50 or...

Nope, raising idle speed & adding timing increases vacuum - but only up to a point. Beyond some point opening the throttle more will not increase vacuum (numerically lower MAP reading), and adding...

Higher MAP, less vacuum, closer to normal atmo... that's not less pressure. Less negative pressure as referenced to baro, maybe.

'Virtual' flexfuel without the sensor does not work very well even in completely stock unmodified brand-new vehicles. Not recommended.