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Alright I changed it. Richened up the PE and will do a Calc VE with my good wideband this afternoon.this afternoon.

I have a 2000 SIlverado with a mild 5.3 that is setup with a turbo pushing 4.5psi
I have a walbro 255 and ID1000s. At idle my stock return style FPR reads just over 50 psi and in boost it jumps to...

I changed H0105. Find % that you are off. Then times it and add or subtract

Well I just calculated it with a common tire size for a Corvette. I would just live with that little difference.

i dont think it will cost him more than 100. Find a tuner that uses EFILive or call Lingenfelter.
It will only be a 1.12% difference if my calculations are correct. About 3/4 MPH at 70

Alright. I have experience with a LS1B ECM.
I know how to calibrate the speedo on it.
What is the correct way to do it on a E38?

Well I did both and tried different settings but got the code. The way I understand it,
if the tires get over 36-37 inches tall it becomes a problem. These are 32 inches.
I think I'm not adjusting...

Well I tried it on my friends truck and I get the abs code. It's an 2007 Silverado with 275/60/20. Were do you change it,
in the transmission or engine?

So you cant adjust the speedometer at all?

I did Auto Ve first.

12680
Am I going backwards or did I miss something?
I went back over the calc.vet thread and I couldn't get my scanner to read all
the PIDS. This is a 2000 Chevy Silverado if it matters.

I just changed it. Am I supposed to have calculated airflow rate in the column
and mass airflow raw frequency in the row?

12679
Is that right?

Thanks joecar! I didn't understand even after that^^^^.
But I opened my scan and tune tools to try it anyway.
When I started working on it it came together pretty fast.

IS there a write up on it anywhere? Sorry I'm not completely following.
I'm trying to learn how to tune by myself but sometimes my only option is to ask.

So I did the autove like the tutorial says. I added 10% to the VE table and during the logs fueling was almost perfect.
My truck is almost stock so I didn't figure I was that much short on fuel, but...

I did this to mine recently and its not working right.
I have the generation 2.
Does the positive for the board have to be 3.3V or 5?
When I log it and turn the wideband on it reads correctly for...

Thanks! It is a 5.3

Cleaned the throttlebody and reflashed the PCM fixed the problem.

We just replaced the spark plugs and wires.
The only code it's throwing is for the AC.

This is the stock tune on my dad's tahoe. He doesn't want me to mess with it.
Just find out why it wont idle.

I searched for info on how to test the O2 sensors and came up empty.
The vehicle has a rough idle and occasionally dies.
Can someone look at my log and see if they are shot.
And tell me how I can...

I have this same problem with my AD1. Now i'm going out to check my other inputs.
I'm glad it's not just me.

I don't know anything about tuning a DMAX, but all the guys that do seem to hang out here
http://www.duramaxforum.com/forum/efi-live/30321-efi-live-faq-read-first.html

OK. It's not the firmware.
If you look at the link in post 7, you will see that the ground and TX are taken from the TX plug.
The gauge plugs into the TX socket. My gauge is in for warranty...