My WOT Efi live log
 

This is my first log on my stock 5.3 What to do next lol i'm new to efi live

Are you running E85?

Nooo why?

Why you running it in open loop? Why are you commanding 9.xx air to fuel at WOT? Who tuned this truck?

The guy who tuned this truck was the guy who did my transmission.

He said he used HP tuners to Correct my speedometer and raise my shift points, but i think he played around with some things

Dude, this tune is all kinds of jacked up.. Your commanding 12s AFR at cruise speeds where as most tuned and stock vehicles command 14.3-14.6 AFR. Your timing is horrible also. Hows the truck run lol?

:( Don't tell me that lol! The truck honestly runs fine haha i have no idea how but it does, it beat my brothers tuned duramax. Should i try and find a stock 5.3 tune and go from there or should i fix this one? Keep in mind im new

From the data you have logged anything would be better. Yes, download a stock 5.3 tune and flash it in. Should run much better.. If your gonna learn tuning you need to get a wideband also

Okay yeah i'm planning on getting a wideband soon, Where can i find a stock tune? Tune File Depot ?

Yep that will work!

Anything i should know before fashing in a new tune?
Just match up the OS and i should be good right?

Yeah just make sure its the right OS and flash it in. Is your O2's and MAF plugged in?

Okay because i found a tune right now with my OS
But it says 5.3 Litre (L18)
The L18 is the 8.1

Yeah only 1 o2 works and yes my MAF Is in

Download the tune and check this page. Could be a misprint..

Get the other O2 fixed. Thats going to screw up air to fuel big time

:/ It's for the 8.1

There is 3 o2's right?
The drivers side 02 doesn't work
The passanger 02 towards the far back is plugged in
and the one above it doesn't fit the harness :shrug:
If i get a wideband should i still go ahead and replace the sensors?

Look at a suburban/tahoe tune. Should be the same

Even though the OS isn't the same?

There are 4 O2's- 2 precats, 2 postcats.
The sensors before the cats are important and help control fueling.
Yes the sensors need to be working. A wideband will need to be placed before the cat, most guys put them on the drivers side right after the manifold collector

Download it flash it in, see what it does. If it dont start keep looking.

Yes? or no?

No dont do that, I think thatll use credits on that vin...

Im about to step out for a minute. Keep looking for something compatable with your truck

Sooo how do i load a new tune?

Okay ill keep looking

program pcm with current loaded tune

nope i can't find a stock 5.3 file for my truck, and i can't load a diff. OS

How do i tune my existing Tune?
If i use my credit what happens if i wanna get a mail order tune?

Whats the first thing you're suppose to do when you first get EFI LIVE?

You can load a different OS, it is just a full reflash.

And the full re flash is 1 credit right?

How do i just tune my current file?

No. No credits.

If its the same PCM you can flash it as many times as you want, change OS, whatever.

So when does the Credit come in?

1 credit per PCM.

My EFI live came with 2 credits.

Another log

I think i need to link the PCM with the credit... but how :(
oh man oh man oh man :shrug:

Oh okay i got it!

Your still commanding pig rich AFR at WOT. You really need to get that O2 fixed. Hows your fuel economy been? At 12.xx AFR part throttle it outta be using alot of gas.

Idk My gauge doesn't work so i usually just say 10mpg So if i put 6gals i can go 60 Miles lol

Hey check out my new log i commanded AFR at 14.63 And i've messed with some more things

Post your tune.

This is the one after i fixed it