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Found this, but not sure how up-to-date it is: https://www.hptuners.eu/help/vcm_editor_parameters_gm_eng_fuel_loop.htm

Very very appreciated, I'll go and do some practicing

hello let me input your tune and make a data on this I will make a park data and a rolling data log.. tks for this precious help

Short Pulse Adder does not change with fuel pressure/vacuum so if it's already been converted to Gen 3 format then it stays the same. Otherwise, use...

Screenshots are from the Gen 4 file, Gen 3 does not use Pressure Delta-style tables. That's what the conversion is for.

what the flow actually does "below the knee" and what values you should put into a tune are two different subjects

any update on this one. working on 2015 with Magnum swap. i did change the gear ratio but no luck with cruse control.

Here's a silly question, the tables you referenced are ECM 12308 & 12307. Is that that like a gen 4 thing? The one's I can see are ECM 12310 & ECM...

Let me see what I can do about extending the line so I can watch it while driving down the road

It cannot be under load if it is in park/neutral. RPM does not require any substantial fuel flow, it has to be in some gear working against an actual...

Here's what the graphs look like if you omit the extra measurement points in the FIC data which seem to have been added with the purpose of exposing...

I don't have the stock OE file for the vehicle due to it being tuned previous to me getting it, However we did not have this issue with the second...

i did tom that is exactly what i pointed out with the images (that there is no need to point out the knee to the pcm) if there were,...

This engine doesn't have the jumper harness like I have seen on other LS engines. It's just the sensor and the main harness plugged into that.

Thank you for the clarification. I will check the part number

I forgot what data was used but i can double check later.

Config 4 Mode 0 is where I've been focusing most of my attention since those numbers seem to be the closest to what I'm seeing, but they're all still...

LSA camshaft as in the LSA in the supercharged 6.2? The engine wont run at a 25 AFR. Usually they wont run past about 18-19AFR. If you post...

'Tune and datalog' means you have to post the tune file and log file here attached to your post so that other people can see them. It's not asking if...

I resemble that remark!!

MASSIVE SUCCESS More soon...

That doesn't make them flex fuel injectors. Your originally-built-as-non-flex-fuel '09 Silverado should have come with non-flex 12580681 injectors,...

let's start out with the basics. What do you have. 14.7 is what should be 'commanded' not 12.5 as stated above... also, post the following: ...

What's the part number on the injector?