Having issue with very rich cold first thing n morning startup. Tried to adjust BRA and does nothing. I set to 0. and nothing happen i set to 5.0. at 32 to 64 temp. I sreached to fine over setting to adjust but cant fined nothing. Ill post tune need i could get it to download.
Do we need to just guess at your mods and stuff or just tell you random things to try without any information??
The VE table is a complete train wreck and the injector data to me makes no sense. So I'm not even sure the injector data is right.
And that timing curve isn't so much a curve as it is just weird shaped stairs, needs alot of work.
2016 Silverado CCSB 5.3/6L80e, not as slow but still heavy.
If you don't post your tune and logs when you have questions you aren't helping yourself.
I'd say adjust Fuel>Open Loop/Base>EQ Ratio, but you've pretty well massacred the VE and spark tables.
ive never seen anything like that ve or timing tables..
Do explain the VE table.
Looks like you asked AI to tune a car. How interesting. The ve, spark, braf tables look like you opened a .bin file with the wrong .xdf.
This GM PCM Tune File is a must-have piece of automotive history. With a year, make, and model of GM PCM, this unit is a perfect addition to any collector's collection. Made by one of the top names in the industry, Chevrolet, you can trust that this file will last for years to come. With its 458.3KB file size and myriad tables, it's sure to handle all your driving needs. Don't miss out on the opportunity to own this piece of automotive history.
Originally Posted by SiriusC1024
Awesome
How can language be that... greasy? I want to go take a shower now. On the other hand, your boss probably thinks that sounds like The Future.
"ChatGPT is the end result of someone assuming that if they gather up a large enough pile of sh*t it will spontaneously generate a pony" or in this case an acceptable .HPT file.
You guys made my day, that's some funny stuff!
On a serious note to the OP, I would either pay someone to fix this or start over with the original stock .HPT file.
Ok funny guys. LOL here the scoop. Car was tuned in 2006 with 80ij siemens scaled. ls1 1999 c5 6.0l LQ9 with ls2 TB cam 227/235. .607/627. 111 lsa. SD tune.
Running 30psi boost. Forgot about conditional ve tuning when i'm running 40GPH Nozzles yes that's right 40 GPH i make will over 1000whp. anything past 105kpa igorne because its fughed by the meth. By 3k rpm im already at 6pis boost. The timing table has been like this since the start so that is not an issue my biggest issues is traction. When i go wot idc goes into the teens. Now as far as my original problem i'll go into a little more detail. I don't know when this started happening but it is affecting my MPG. I remembered when i started the car cold it would do this but within 10 15mins it would go back to desired AFR. So now it runs rich and takes about 50mins then gos to normal. Every Time its about 50 mins. This engine moves a lot amount of air all the times even with Procharger BIG Red BOV so to get this prefect is not going to happen. I got to where i was content. Wasn't perfect but when u keep adjust the same cell and get lean adjust then rich adjust then lean.You see where this is going. Like i said the tune is what the engine wants and that's that expect for this rich condition for 50mins then goes back to normal. Weird.
Just a small update but don't want to jump the gun, but i did what siriusc1024 suggested and it helped a lot. I timed it and it seems to go back to normal about 22 to 27mins then runs like usually but it still runs rich intel the switch. Since a made this change my cold crank start takes a tid longer.
I love all the comments about how eveythings fuked up but like 5FDP said he has no information on my set up and what was done to the engine and how it runs and why it runs that way. Yell at the engine not me if it doesn't wants to corporate.
But like i said that suggestion did go in the right way if it wasn't a fluke. Will know tomorrow for sure..
But this is new to me i didn't know timing had anything to do with why it running rich at startup. Im still learning Im looking at drivable so when it goes back to running good how do i adjust the ve table and it doesn't affect start up. If i lean it out to help the rich start up problem the car will run like shit when warm Drivable is 90% good when all is running as should. I got a 675 idle right on the money, no hanging or searching idle.
Hope this helps.
Last edited by helga203; 10-08-2024 at 09:49 PM.
Maybe you're satisfied, but this could run 10 times better than it does.
Yes that's why im still asking questions. I don't know why its taking so long to get out of rich conditions when its not calling for it.
Well thinks for the help anyway. At least its in the right direction with your suggestion. THX . Just got keep digging at it.
If anybody wants to see what changes from his suggestion are here u go.
Deka 80's and a vacuum referenced reg set to 58psi?
You need professional help, that VE and Spark table is not what any engine wants! I'm impressed you have been able to keep it alive this long. Please look at what a finished VE table should look like. You will not see one that changes 20 percent VE in side by side cells.
I just peaked again, Sirius, am I seeing it correctly, the injector data is also wrong based on his info. given?
Last edited by abc; 10-09-2024 at 07:27 AM.
Yes but what about his tune file??? LOL
Entertaining thread.
Well over 1000 HP on some 80 lb. injectors. Yeah I'm hanging around waiting on a dyno graph, time slip, etc. No way this thing even runs half way normal on this VE let alone make 1K HP.
wow VE.jpg
Last edited by edcmat-l1; 10-09-2024 at 07:41 AM.
EFI specialist
Advanced diagnostics, tuning, emissions
HPtuners dealer and tech support
email=[email protected]
There's a saying, "In the beginner's mind there are many possibilities; in the expert's, few." However there are two completely opposite meanings to it. The original meaning was that having a beginner's mind keeps you open to novel solutions, while the experts get stuck in the trap of only doing what has been done before.
But the second meaning is where the beginner comes along and says "Well why don't we just invent a cure for all diseases?" or "If launching rockets is so hard why doesn't somebody just build a machine that turns off gravity?"
You don't know this trick? Just use the high-pressure pump for a DI engine. They'll flow plenty.
I am glad you posted this. I went on a slight rant yesterday about these "experienced" guys that know it all or something to that extent.
Where is this rant lol?
Reply With Quote