Speed Density Histogram Setup in HP Tuners, Tuning Series Vol. 4.2

[@pcmcobra]

still a little dizzy from this one, but it is clicking. I'll have to rewatch this a few times, like the rest of them. Thanks for the great videos.

[@GTO200]

Thanks for the video, made perfect sense! My 06 GTO has the MAP and Engine speed switched on the graph in primary VE so I just made the columns the rows and vise versa on the histogram, not sure if that’s unusual to have those switched.

[@michaelmackaman6857]

I am working on a 2003 Suburban 4X4 was a 5.3 Flex Fuel. I have a 6.0 in it now with the stock injectors and a NNBS intake, 90mm TB, BTR Stage 2 Truck cam, 1-7/8" Speed Engineering headers and off road x- pipe. I plan on working on the MAF and then hopefully the VE this weekend. If you still need the Bin file and logs, let me know.

[@FirstLast-we8cb]

Great vid. I'm enjoying the series.

[@charlesking8542]

Thank you for an informative series. Initially I was confused a bit because what you and the tuning world call a histogram graph is neither a histogram or a graph according to definitions used by the rest of the world.

[@donnie1581]

Did you get your flex fuel files you were asking for? I have Gen 4 flex fuel LMG motor that's all stock and a tuner to log info. If you haven't gotten them yet, let me know

[@GoatRopeGarage]

Yep, thanks!

[@dannydigtl]

I notice on the newer cars you have a VVE table for every intake and exhaust cam angle... how does that work? Thanks!

[@john21640]

I have now watched many of your videos. Some of them at least 25 times. I can't thank you enough for trying to provide us this knowledge but I have to say tuning stock ECM's with HP tuners is absolutely ridiculous! If someone is going to make small changes maybe just maybe they might be able to do this. But I have quite a bit of experience tuning many stand alone fuel injection systems and I have had wasting weeks trying to get a stock gen4 6.0 LS with 6l80e to idle and run well enough to get out of my driveway. I have only changed to Delphi 55lb injectors and added new fuel rails and a flex fuel sensor. That's it other than a rocker trunnion upgrade and hardened pushrods the engine is stock and has been gone through top to bottom. I have a unique situation where my vehicle is a Izusu NPR HD Gas truck that came equipped to run on CNG fuel and had was really cheap to fill but hard to find stations until Jan 2023 when the fuel tripled over night due to "the Russia Ukraine war and became really expensive. So after this system damaged the 823 cylinder heads for the second time beyond repair. It literally pounded the valves into the seats until losing compression. The amount of tables you have to play with and the level of complexity is just nuts! I am also about to LS Swap 2 older muscle cars with Gen 4 6.2 LS engines from the junkyard that have been rebuilt with healthy cam swaps and now I don't want to even think of messing with this 2 more times. I will not waste the money on custom built wire harnesses and more credits for HP tuners. Now that Holley terminator x supports the 6l80e I think I should go this route. This way I can actually have the system truly tune off the wideband 02. Not play with stupid tables that wont save correctly and disappear the next time you open the VCM scanner. The editor seems to work fine on any other ECM than my stock one. It must be locked or damaged. I have already rewritten a different one after losing 2 weeks messing around making phone calls going on forums ECT ECT. I can only read the TCM file. The VCM scanner program sucks and is buggy. It disconnects often on its own or freezes up while the vehicle is running and sometimes causes a issue the laptop USB and wont work at all. I have tried many stock tunes both for E85 vehicles and gas vehicles that came with this same engine and trans and they are so far off you would think they are from a 4 cylinder Honda. I can't waste anymore time playing with it. I have to find someone that knows what they are doing with this and tow my truck to them and pay them to tune it. I have tuned a 1000 Hp big block on a FAST XFI system. Way easier. A 500Hp small block 383 on a ACCEL DFI. Way easier. A Mazda Rx7 Turbo rotary on a ELECTROMOTIV TEC 2 And later on A HALTECH 1000 System on E85. All much easier then this. I am about to learn the HOLLEY HP on a small block 383 and will make a decision after on the LS Swaps what to do after seeing how difficult the Holley is but it looks like to be similar to the other previous stand alone systems I have used just with nicer updated features. I have tried my best here and seem to be failing miserably.

[@leroyhart1368]

Did you ever get your Flex Fuel EQ ratio version by chance?

[@maxdabator]

Mannnnn find a tune file for an Australia 4litre Barra falcon, wrap your head around that one

[@bdugle1]

I just started watching this series to get up to speed on tuning my LS swap ‘71 C10 (under construction, engine into frame next week). The ECM is an E38 which means I’m in Gen4 territory with a virtual VE table-got that. HP help suggests I get their MPVI2 Pro because I’ve got a 2-channel wideband with analog 0-5v output. I’m getting that your wideband connection is digital, not analog, and reads directly in lambda. Or maybe needs a decimal point conversion. I guess this means I need to set up a conversion from 0-5 to lambda, correct? My data collection table will likely be rpm vs KPa for SD? What units for my MAF curve? I need to get the software and follow along, but need to figure out which setup is right before I pull that trigger. Thanks for the videos, VERY informative despite my questions!

[@omarbekauri493]

It's good to show us the tuning process, and I'm sure many your subscriber learn how to tune. But these videos are more for those who already understand and know tuning. Now, I am beginning to understand what does tune means. At this point I do not understand what the diagrams indicate (I know 14,7/1 that is main number, but still don't get it). I don't get it, when you change numbers, for example -5, what that means, or where you get that number from, or what this changes does. As i said, I'm beginner and if you have some advice for me, how can i learn tuning, I mean when to add or subtract parameters. I just don't want to learn by rote, I want to understand what does it mean when you change something. Thank you for your attention

[@optimum408]

can you make a video on setting up a histogram but with afr err not lambda. i want to sd tune only on a 3rd gen ls. thanks

[@GoatRopeGarage]

Yep, it's pretty simple, I'll get one out soon.

[@optimum408]

@@GoatRopeGarage perfect cant wait to see it. looking forward to tuning my car SD.

[@shaadydog1]

@@GoatRopeGarage Did you ever do the Histogram in AFR?

[@in54ne82]

Have you ever used tuner pro? I'm assuming it's all the same concept? Thank you for all the information you give out!

[@robertwcote]

I was losing my mind trying to get the histogram to work. I knew the wideband was sending data to my laptop, because it was displaying the proper value in the list of sensors on the left, but the histogram would just remain blank all the time I was logging data. I watched this video like 5 times to figure out what I was missing. Finally, I realized that when you are in Graph Display Layout Editor, you have to click on the graph in the list on the left of that window that you want to make changes to. I was doing everything right, but missing this one click of the mouse, so nothing would work. Perhaps this might help someone else out in the future.

[@GoatRopeGarage]

I've changed the spark advance table on accident so many times doing this!

[@vh14a]

Hey man... thank you so much for all your help with the HP Tuners. I have a quick question. Right now I'm running my car in "Speed Density" but not a converted operating system. Just forcing to run sd by setting maf HZ to 0 and and set to mill on first error. Car runs best like that. Only problem is it won't pass inspection because of maf code stored in ecu. If I were to convert to 2 bar SD operating system would this fix my problem with maf code? Just trying to figure out how to avoid having to re flash each time I need inspection.

[@GoatRopeGarage]

Hmm, log air calc mode and see if it stays in "normal" then set P0103 to do not report. As long as it doesn't go into high speed you should be good

[@joshdrobny93]

So this series is explaining things way better than anything I've come across so far, but is there any other material you would recommend? Like books or training videos? There's a ton of knowledge here but I have a 13 cruze with the 1.4t that I want to practice with and there is a lot more to the menus than the v8 stuff.

[@GoatRopeGarage]

Just the forums, try and fill in the gaps there as far the socialized things to do with your platform. And if you have any specific questions let me know and I'll see of I can't address them for your 1.4 setup!

[@bk2life]

currently working on a 2003 flex fuel 5.3. Stoich AFR table starts at 14.62857 at 0% and goes to 8.77088 at 100%

[@polmacdhomhnaill3021]

Hi our cars are not listed so we can’t buy into the hardware to tune our cars. Would you make a video on MAF delete and how to find the numbers to bypass the MAF to read the Map thanks.

[@shariftolbert859]

I know this is a older video but I’m hoping I could get an answer when I go to my stoich AFR my table starts at 14.67822 at 0% and goes to 8.97803 at 100% changing as the percent rises. Not sure if you covered this in a different video but I’m trying to set up my EQ error in the scanner and I think the math may be off. This is a 2009 GEN4 L76 from the G8GT engine and flex fuel was disabled.

[@davidrice4988]

Hoping you can help me with setup. I need to get my VVE tuned and my biggest problem is with setup. I have a 2016 Stingray. I am using an AEM OBD2 wideband set to display lambda, which i have tuned my MAF which is spot on along with my idle and coast down. I understand how the GM VVE works and how it relates to torque. I work as an instrumentation engineer and i deal with flow, temperature, pressure, density and the compensations involved. It's not dissimilar with engine management. I use Bernoulli's equation etc on a daily basis. It has always been the software setup i have a mental block with. What im trying to do is set mt histo to read a lambda error for VVE tuning. I have one setup based off of the factory eq ratio but would like to use a user defined according to my AEM. My question is would it be as simple as my AEM reading divided by commended [36.238]/[68.238]? Also do I have to be in open loop to use it that way? Also when all is said and done is there a way or is it possible to check the MAF and VVE against each other? Thanks

[@GoatRopeGarage]

Go into the math parameters section and look at the default math for EQ error, it's a bit more than just reading/commanded. You need to be in open loop that way you're not fighting your O2 sensors. Not really a way to treat the MAF versus the VE table as you're either using one or the other or a blended version but you can't really compare unless your disable one scan, then swap.

[@davidrice4988]

I got it, saw your other vid on SD tuning. Got the histogram working as well but i have one set up to say 1.25 and the other to show 25.xx%. Thanks for the help and tutorials!!

[@codywright4910]

So I am in the middle of tuning my Torq-Head 24x ( P01 LS3 PCM) swapped LT1 and I have a question in relation to how this graph is in relation to yours … Now I have done as you have said but I have used my numbers respectively since it’s specific to what I am dealing with …. Now I have noticed that my Histogram lights up but doesn’t display numbers at all …. Also I have noticed that your RPMS are set as 0.4,0.6,0.8 ect …. Shouldn’t they read “ Per 1000 RPM’s to bring them into correct labeling ? I’m confused that I have no display of a exact number inside of the cell block of the histogram just the highlighted cell of which it is in ….

[@yawefuck]

How are you determining which variable to select when there are multiple of each type. For example RPM gives you a list with multiple stating RPM, or in the MAP portion, there are multiple variables with similar description.

[@GoatRopeGarage]

99% of the time you can use the generic one, I often look for the one that has the least amount of text attached to it, lol! So when I see MAP and then there are hi and low res versions, I am going to pick the one that just says Manifold Air Pressure.

[@yawefuck]

@@GoatRopeGarage haha, that makes sense to me as well as far as what I would pick. I just didn't know if you had a list of variables per the vehicle you were tuning and were matching the specific naming convention. Love the videos by the way! An additional question, and maybe you get into this in your later videos, but would you be able to show how you pull raw data logs into histograms versus filling in the histograms live? For me, I have an accessport to log with, and it would be easier for me to load the logs in versus carrying a laptop inside the car. Are you using the HP Tuner software to convert, or are you popping it into excel and doing a graph function there?

[@shawnc1716]

I have a gen 3 silverado supercharged and my tuner added a flex fuel sensor but I was tired of trying to get my tuner to help so I bought hp tuners and did the sd os and everything. I can't fig how to tune it my air fuel ratio commanded is 10.67 my aem gauge is always around 14.60 so I think my tunes all over the place and honestly don't no were to go frm here

[@timothyberlinski2299]

I have a flex fuel tune out of my 2017 camaro if you want it, its pulled with efilive though

[@shaadydog1]

Sorry I previously posted this comment/question in the wrong video... For some reason when I do your custom math, with the 50119.238 still in place on my Gen3 its goes pink and on past logs there are no values shown. When I edit that to what I use for my wideband then I get a 1xxx.xx value. I know where I am at right now I am pretty rich 12-11:1sometimes dips to 10- 9.7:1, and I wanted to switch over to Lambda to make dialing in the SD turbo tune a bit easier.... any thoughts? (98 camaro stock PCM 2bar SD with AEM 30-0334 ) I guess another question I have is if my wideband has Lambda setting on it cant I just log with that setting?

[@14truelies]

So is the point t of making these graphs or well histograms so when logging you gain data and paste that data into your actual tune file? For example my stock 2017 coyote. I could set up say one of these for MAF or speed density log my car while driving g around and paste into its graph and help dial it in better or more. I want to do a 2018 oem cold air intake on my car since islts a sizable increase. How do I scale the MAF so i can actually drive and start dialing it in?

[@alexawtracewilliams4057]

So I understand making histograms (mostly) now, but im having issues with building an accurate table for VE on a 16 Scat Pack. Do i use EQ Ratio Err? do i use something else? Im not sure what PIDs to use and how to translate that to this car. Im also getting some eroneous readings from things like my EQ Err PIDs. Not much infoI can find on these cars. BTW, im using VE tables as IM trying to learn the basics of tuning before jumping into the NN. Anyways, I managed to get my STFTs down from -20% to -3 to -7% vs my last tooners numbers!!!! Still not sure how far i wanna adjust it though without accurate EQ readings. Thanks for any help or insight

[@GoatRopeGarage]

Eq error would only be if you’re using a wideband, sounds like you’ve done a lot without one already! You have the cam upgraded?

[@alexawtracewilliams4057]

Yes sir. I know it’s a no no to not have an External WB but I’m trying to use the Factory ones for datalogging and I’ve been going off of fuel trims just to see if I’m headed in the right direction. Cost effectiveness😅 It’s a comp cams “stage 2” 222/230 .599”/.604” with VCT limiter. I emailed comp today to see if they could give me VCT values to run cause I have no clue what I’m doing with those

[@ClintonC1991]

I have an l96 if you need the tune file for the flex fuel stuff still.

[@GoatRopeGarage]

Got one, but appreciate the offer!

[@fasnuf]

9:00 you can see in the Camaro where the open and closed values are different but only in a small area. Mine is like this and it concerns me when pasting the new values in.

[@TunedMercedes]

Awesome videos thanks! Where did you get the stoichiometry number from

[@josephbargo5024]

14.7? that’s just the air to fuel ratio for efficient. Lambda is just your AFR/14.7 >1 = lean CO2 + H2O

[@codyd6073]

@goatropegarage I am assuming that before you begin logging your histogram, you will want to disable fuel trims and/or tune out the DFCO cells by putting a > qualifier in your math to omit 0% TpS cells(you stated in another video)? Just want to verify. I have my MAF pretty dialed in after meth on my turbo LT1, but want visit these tables as I didn't initially tune the car and haven't been impressed with it thus far.

[@GoatRopeGarage]

If you can't turn it off that's another way of filtering that data

[@docsean3363]

do you still need the flex fuel model, i have the 2011 escalade flex fuel

[@clapfishSS]

I have a question if you get a chance to answer. When reving the engine in neutral, on decel the car will drop to 450rpm and act like it's gonna die for about 10 seconds then go back to the idle set point. What section of VCM should I be adjusting for that? Thanks for all of the great videos.

[@Chickencoop2016]

VVE

[@clapfishSS]

@@Chickencoop2016 Mine is gen 3 so no VVE. I did get the issue resolved, although now I can't recall what it was lol

[@transamman1795]

Hey love the videos !! Just curious I can not get the math to work on my scanner . Do I have to stop logging the afr error in order for it to work ? Thanks !

[@GoatRopeGarage]

No, shouldn't care about that, work from the graphs back and make sure you don't have any pink blocks in the math indicating you're not getting a channel in your log

[@transamman1795]

@@GoatRopeGarage okay thanks tonight I'll be getting back at it after work . I'll just start from the beginning again . Thanks again !

[@transamman1795]

@@GoatRopeGarage sorry to be a pain but long story short I am tuning a os from a 2002 Tahoe with flex . The whole point of setting up the EQ error is so it makes the wide band read correct compared to the commanded EQ from the ECU ? For example the gauge should always want to read around 14.7 even though the car is commanding 10.1 for example

[@GoatRopeGarage]

@@transamman1795 No, you want to do EQ ratio because it is always 1.0 at stock I no matter the fuel you run. If you tune with AFR your have to calculate your appropriate AFR based on alcohol content.

[@transamman1795]

@@GoatRopeGarage not sure if you do this for people but would you review a tune ?

[@sicunt69]

Hi do u no much about doing speed density on aust ford xr6 turbo

[@thejuanandonly9534]

I'm not sure if you're still replying to comments but when setting up the user math for AFR to EQ error ratio will stoic always 14.68 or will it be different for every car

[@bk2life]

different for every car.. you have to look it up in the tune to see what it is set to

[@georgiaboy1579]

I have a 2000 Sierra. I set my SD histogram up exactly like yours but when you click on it at 8:10 I have no info on my log file. Any ideas?

[@GoatRopeGarage]

Missing a pid, if you're not getting data it ties back to the fact that you don't have all the data coming in that your new to get the graph to work.

[@curtiswhitt6304]

So do you have to do a maf tune and speed density or can you just use one

[@GoatRopeGarage]

You can just use one, but you get the best driveability from using both in tandem

[@sethgibbs1686]

On the truck im tuning its using pressure ratio I think and my stoich tab is reading .0695 and under my power enrichment ranges from .0110 to .0215. what im not getting is why its .0 instead of .695 which would be like 9 something afr.

[@GoatRopeGarage]

Year, make and model?

[@sethgibbs1686]

04 dodge ram 5.7 hemi @@GoatRopeGarage

[@GoatRopeGarage]

I'll try and take a look at one tonight and let you know what I find.

[@920PC]

Slightly off topic but I am wondering if there is a way to move my offline profile from VMC Scanner to another computer? I prefer to work in my office rather than on my laptop but I have never phisically hooked my office machine to the vehicle. Thanks

[@GoatRopeGarage]

Honestly, I haven't tried. I tune on two computers, you can probably copy everything over as the install is pretty compartmental. I'd install the same version on both then copy the directory that normally is in documents.

[@920PC]

@@GoatRopeGarage It is actually easier than expected. Once you connect to a PCM there is a folder created named "Vehicles" that contains the offline profile. The default folder is in "Documents" I moved the whole "HP Tuners" folder to another computer and the offline profile moved over and is now accessible on the second computer. Beautiful! :-) Nothing had to be done with the install files (Program Files) Life is good. Thanks for the tips and great videos friend!

[@GoatRopeGarage]

@@920PC Thanks for the follow up!

[@coolguydpc89]

What is AFR what is Landa?

[@zerofactorx]

So for clarification, if I’m logging equivalence ratio commanded that is the lambda version of the afr commanded?

[@GoatRopeGarage]

Correct, EQ it's in lambda and will generally be in the .80 to 1.4 range with 1.0 being stoich no matter what fuel you use.

[@oddball0045]

@@GoatRopeGarage I never understood why GM made all of its enrichment ratios (like PE EQ ratio) the inverse of lambda. It made tuning my AFR spark correction table a bitch until i understood the column axis was the inverse of lambda just like the PE table Once i figured it out it all made sense and you just have to divide the EQ ratio into 1 to get true lambda aka the EQ ratio reported in the scanner but i just dont get why GM wouldn't make all the tables in the ECU in lambda in the first place.

[@GoatRopeGarage]

I think it is supposed to represent a multiplier so if you are running a PE of 1.15 you think of it as 115% of your desired EQ ratio, which then gets more complicated when you take into account that less than 1 is rich! I have to stop every so often and wrap my head back around things!!

[@aleksmijakoski4281]

for some reason , i cant get my speed density histogram to work. I followed all your instructions.

[@GoatRopeGarage]

Is it populating data? Your wideband is reading in correctly?

[@aleksmijakoski4281]

@@GoatRopeGarage how do I make it read correctly

[@aleksmijakoski4281]

@@GoatRopeGarage it reading data, but how do I know if it's correct data cheers.

[@eduardocardoza9784]

Might be a little late but I got one of those rare tunes

[@Alexslo1k]

I just tried this and I can see the graph switching around in 5he cells as tap throttle but no numbers populate. This is on an 2013 cadillac ats 2.0t e39a ecu

[@Alexslo1k]

My ecu uses pressure ratio. I made the map/baro tableas you showed us here. I dont have a wideband yet so i was just trying to use the preloaded eq ratio to try and log error to try and make small adjustments but no go.

[@GoatRopeGarage]

Yeah, the tables on this are based on a wideband reading

[@codywright4910]

What about us people who have externally sourced wide bands that don’t hook up to the laptop ? Can we still populate this stuff or are we required to get a wide and that plugs into the laptop ?

[@Shiftheads]

I'm in that small group with flex fuel trying to tune this truck right now and pulling my hair out lol

[@rodstrong01]

I have a 2012 Caprice with flex fuel you want a log and a tune

[@GonzosGarage]

I'm saying this with love, slow the F***K down. Most people don't know how to do this stuff. Blazing thru it made my 20yr old son say "screw that guy. I'll just figure it out myself" 🤣

[@GoatRopeGarage]

Haha, I try to keep the videos from being so long! It's a hard balance to strike!

[@GonzosGarage]

@@GoatRopeGarage I know brother. I thought it was hilarious. He told me earlier yesterday what I do cant be that complicated so he was gonna tune his truck himself. That didn't last long after he was trying to figure AFR error while watching ur video.

[@GoatRopeGarage]

@@GonzosGarage hahahaha, classic!

[@cruzin1383]

I had the same problem way too fast lol I had to slow KZbin down to 80 percent speed lol just so I can follow along.... Just an FYI for others that have a hard time with the speed of this video

[@pizzaparty-r1c]

I don't have a VE table.

[@jorgesalinas8876]

I got one of those i need help flex fuel 2003 suburban

[@gio0829]

Hey man can I get your email so I can send you some logs, I would like your opinion on how im doing.

[@gabeschierberg1107]

My errors are coming up - -100% did I do math wrong

[@GoatRopeGarage]

Most likely, trace the data back to the sources and make sure it's calculating correctly

[@gabeschierberg1107]

Thank you for the information I was using your Gen 4 setup on my gen 3 was the issue love your videos

[@jacobcoons79]

Hey man can I get your email? I can send you log files and let me know how to tune?

[@YZFoFittie]

Wholly shit, this videos watches like its sped up 4x...