Are you talking about on the scanner or the editor? My editor is set up to change colors when the values are changed. I've never tried to setup colors for values in the editor otherwise and don't see that as helpful. But then again, I don't really use colors in the scanner either.Originally Posted by mychevyisntheavy
i get the error from the scanner. once i load the error into the ve, in the editor, it changes color to a blueish green, or a pinkish red. and to make the pinkish red to the bluish green smooth between the bluish green or the table itself. in the editor. its how ive been making the ve. into the shape it is. not from just hitting the smooth button till u cant change it anymore. i just hit it one time after ive lined all the cells up in order. in up to down from left to right. so there is not spike or a big dip. smooth transition in all directions. but not to smooth. its how i got to this point.
unless im doing it all wrong, do i change the bluish green to pink. or do i change the pink to bluish green. remeber im a newbie here
and im no advance tuner either lol
Last edited by mychevyisntheavy; 11 Hours Ago at 03:29 PM.
2003 gmc rcrb black.5.3, 4l80e.
You may need to pay more attention to the number of hits for each cell in the scanner and less to the colors in the editor before you start smoothing. Weigh toward the cells with more hits.
My editor may do that when smoothing, but I'm paying attention to the numbers, not the color.
right im looking at he numbers so the they follow in order. like 57.68, 56.88, 58.99. i tune it to change the( 56.88 to like 57.78). but what im asking is the color in the tuneable ve table is in bluish color and a pinkish coor. do i tune out the bluish color or the pinkish color. which way. is it
2003 gmc rcrb black.5.3, 4l80e.
I determine which ones have the most cell hits and hold those as boundary. I don't worry about the colors.
i think im doing this all wrong. my ve looks not a ve. its a huge ass valley it cant be right.im taking the higher numbers and making them go lower in every cell that has a error. it has to be wrong . i should be building a mountian , it is a huge bowl that i have made. look at it
Last edited by mychevyisntheavy; 10 Hours Ago at 03:56 PM.
2003 gmc rcrb black.5.3, 4l80e.
its not right at all it has to be wrong. its way im having so many problems with this, im tuning it backwards, it has to be wrong. im lowering every cell that has a error.
2003 gmc rcrb black.5.3, 4l80e.
Have you considered hiring Alvin or edcmat-l1 to remote tune this for you instead of the later "dyno" tune?
have no clue who this is. im about to pull the motor back out anyways. to do the up grades. im no tuner thats for sure, but i can work on this things. ill figure it out . i do think im doing it backwards, the ve looks way off from other ve ive looked . this motor is no baby. the ve should be bigger. its a bowl. look at it. i went the wrong way in tuning. i should have made the numbers bigger. it has to be the reason im having knock issues. i knew something wasnt right. i just dont think im was going in the right direction the whole time. i guess thats way i kept coming here asking question hoping to get help. thinking id figure it out. but yea, i mean look at the ve. in the diagram pic. its a bowel. i built a bowel. lol. so yea, im gonna start going the other way with the tuning. slowly move the ve upwards. i should have the stuff i need to make my changes this month coming and then get is dyno tuned bye someone that knows way more.
Last edited by mychevyisntheavy; 10 Hours Ago at 04:20 PM.
2003 gmc rcrb black.5.3, 4l80e.
Why are you so worried about what the VE looks like? When you are done tuning it properly the VE will take whatever shape and contain whatever values it needs to accurately model the airflow characteristics of the engine. You are completely looking at this the wrong way. Here is a perfect world scenario, if you have a cell with a positive fuel trim, say +10%, that means the PCM had to add 10% to the corresponding VE cell to achieve the target air fuel mixture. It shows up in the data when you log, then you add 10% to that cell in the tune so the PCM doesn't have to make the correction next time. Then when you log again that same cell will show up as a 0% fuel trim correction and is now tuned.
Be careful on who you choose to dyno tune this. Bunch of horror stories out there about hack job "dyno tunes". Just because they have a dyno doesnt mean they know how to use it or how to tune.
[QUOTE=twenglish1;841688]Why are you so worried about what the VE looks like? When you are done tuning it properly the VE will take whatever shape and contain whatever values it needs to accurately model the airflow characteristics of the engine. You are completely looking at this the wrong way. Here is a perfect world scenario, if you have a cell with a positive fuel trim, say +10%, that means the PCM had to add 10% to the corresponding VE cell to achieve the target air fuel mixture. It shows up in the data when you log, then you add 10% to that cell in the tune so the PCM doesn't have to make the correction next time. Then when you log again that same cell will show up as a 0% fuel trim correction and is now tuned.[/QU way do i still get knock, am i going the wrong way in the tuning.
2003 gmc rcrb black.5.3, 4l80e.
I’m not even sure if he is actually using fuel trims or that he doesn’t have some filter or math function screwed up.
I guess I assumed that you read more than just your thread on here. Alvin and edcmat-l1 are both professional remote tuners that post in the GM gen3&4 sections a lot. You don’t seem to be enjoying this so have a pro do it. It’s only worth doing it yourself if you enjoy it and want to make a hobby of it,
They are very good at it and can knock it out in only a couple revisions.
He has switched between trims and wideband so many times, then was talking about turning off the trims with the bi-directional functions, so im not even sure at this point, the one log i applied to a tune for him was in closed loop, but if he disable something with the bi-directional it probably wasn't even right, the follow up log he posted looked like a step in the right direction then not sure what was done after when he was going on about the VE not looking right, i've tried my best to help, and explain how this all works with the assumption that he has done research on the basics of logging, plotting the charts and applying to the tune and the basics of how the PCM operates. It definitely can get confusing and is a huge learning curve. Also going to recommend hiring a pro at this point, as stated by others either one of the pros here or find someone good local
I haven't seen any knock retard in any of the last 3 logs you posted, why do you think you are getting knock?
The cell hit counts are very low for knock retard, need to check the polling rate(right click the channel on the channel list on the left side), may also need to remove un-necessary channels that could be slowing things down.
Screenshot 2025-08-01 210830.png
Last edited by twenglish1; 6 Hours Ago at 08:12 PM.
i believe i had bad data in the being bad data inbad data out, someone in here told me to turn off those setting in the trims is why i did it, im no tuner for sure. i posted the tune in here same tune for bunch logs, i did get knock on a couple hits in the tune which one i cant tell you. i posted so many things. here is the tune im sicking to no matter what, i think my wide band was set up wrong i followed directions to the letter, ive reset it up the ltft & stft math shows way green there is no way that the cam i have with all the stock stuff i have that the ve looks like it does. i understand about cell hits. you have to have fuel in the cells to not have knock. bye my older bowl shape ve there was no fuel. i pulled the plugs and had black dots on them . so i know its been pinging. only thing i dont have that isnt stock is the injectors @ 34.6lbs, the cam which is 585 lift. which is not that big really, my intank fuel pump 255lph, headers, and 10.5 compression. this thing shouldnt be this hardfor me to tune. either i have wrong histograms, to see the errors. im going bye what others tell you. i dont have books or manuals, to pull the process to make them right. ill do my best at tuning with what i have im about to pull the engine out to put my heads on, might go ahead and rering it also, then get the right injectors with the right data, and take it to a tuner that is well knowned arounfd here. just cost about 600 bucks just to get it tuned. about 500 for the injectors, ive already paid for the heads. so yes. not rich kid here i work hard to get where it is now. i thank you guys for trying just lil over my head i guess. i wont hurt it no more than what it already is. i had pcmforless do the ve i have now. so thanks again
2003 gmc rcrb black.5.3, 4l80e.
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