Turbo BS Thread

Precisely!

 

This is bad rich yes? -20.3 and -21.1 short term fuel trim

 

Yeah she pulling a lot of fuel. I'd say lean her up in 5% increments until things look good. Maybe buy a set of plugs after you are done. Under 10% in the LT and ST is where you want to go.

 

Alright, so is this more important than afrs right now? Will the factory ecu keep that in check for the most part? I mean they may be a touch rich like high 13's-low 14's right now. And then should i just interpolate the chart in table formate to fill in the gaps?

 

She isn't going to save data until your coolant is above 160. Plus you want to tune once you are warmed up.

 

Closed loop don't worry about your AFR's computer will hit 14.7 on it's own. You want to adjust fuel trims until they look good. AFR adjust is later down the road.

 

Yeah thats my tranny temps but coolant wasnt quite up to temp yet. Gonna fix that screen so my afr fuel trims and coolant temps are all on the same page before i start too and then i can keep an eye on all of it

 

Truck is in cold start mode until over 160.

 

New screen configured (afrs are because the truck was off when disconnected from blue tooth as also noted by mpg amd load reading so dont worry about that haha)
I can only fit 8 so i left my lt fuel trims on the other screen

 

I'd say dump the intake and mpg reading and put your LTFTs on that screen while you're tuning.

 

Alright kinda halfway got my stft in check but my ltft are nuts now? Positive numbers are lean right? I dont understand how my lowest value is -.56 and some values are even positive, these injectors are over twice the size of stock so how could basically the same voltage produce a lean situation anywhere?

 

Happy 4th everyone!


Getting a bit too ambitious with that fueling. It takes a while to adapt to changes in closed loop. ST +LT + stock map = fuel output. Your fuel table is also added to the beginning of that equation. The way I tune CL is in 5% steps. For that setting you have here you want to add fuel because you got too aggressive. Add 5%. You will see your ST change and even feel the change in how your motor runs. Give it about 10 minutes for that 5% to make change to your LT and your St will zero back out. Once those St are back to zero you can take or add fuel again to adjust your lt to a safe area. Closed loop is a very slow process. Once you get good at it there are short cuts.

 

Well outlined.

 

What's the latest, @yota243 ? The the STFT's straightened out?

 

i haven't messed with it since yesterday morning, my stft were reading 0 but my ltft were lean, I may mess with it a bit tonight or tomorrow night, you get your stuff str8?

 

The swap was easy. The "add in new injector profiles and it will run because VE map is already setup," was not the case. 35.2 AFR was a hair on the lean side at idle.....

 

holy crap I saw in you build that it wasn't as easy as you originally thought it would be but dang that is a touch lean

 

Same principle effect happened with the ProEFI. Had to add in a lot more fuel in the low rpm/load cells. Just the nature of these injectors. Had hoped for a different possible outcome, but knew it might still be the same.

 

That V.E. fuel map was before the increases.