squealingtires

iTrader: (14)

My freshly calibrated LM-1 wideband, which was purchased new and used half a dozen times, displays a different AFR on the LCD display than my EFILive Flashscan v7.4.2 picks up. Sometimes the difference is as much as a 1.5 AFR points. The Flashscan always reads richer than the LM-1 unit. I used the LM-1 PIDS that came with Flashscan. I don't have the default volt/AFR equation but here is how Flashscan is interpreting the output voltage. By the way, how do I change this file, where is it located? I'd like to go to 0.0V=11AFR and 5.0V=16AFR?

Wide Band AFR 1 - LM-1 {CALC.AFR_LM11}

Expression:
AFR = {EXT.AD1}*10
is VALID

Wide Band AFR 1 - LM-1 {CALC.AFR_LM11}

Expression:
V = {EXT.AD1}
is VALID



What could be the problem and what should I check?



I'm ready to go to a custom operating system and I need sanity check and reassurance that my wideband is accurate before I trust myself to do the VE tuning. Thanks!

SSpdDmon

iTrader: (10)

Um, your calculation/equation for Flashscan might be your problem. You're saying that a 0-5V signal represents a 0:1~50:1 AFR operating range. To calculate, plug in a raw voltage for the EXT.AD1 variable (for example 0 and 5).

0*10=0:1AFR
5*10=50:1AFR

If you want to set it up as indicated (looks like the way I did it), you need to do 2 things:

1) Change the equation so that AFR = {EXT.AD1}+11.

2) Program the LM1 so that 0V=11:1AFR and 5V=16:1AFR.

To change the equation, you either need to create a custom PID for your WBO2 or go into the sae_generic.txt file (not recommended) and change it there. If you choose to manipulate the sae_generic.txt file, be very careful with the changes you make as this is a core file for Flashscan.

squealingtires

iTrader: (14)

How do I do this? I've looked for help and I'm told I need to build a new PID. Can't I just adjust the existing PID easily. I need help here. Is there a writeup on specifically on building a new pid?

I know I can do this with the LM Programmer software from Innovate very easy and straight forward.

SSpdDmon

iTrader: (10)

Like I said, you can either build a new one or edit the existing one in the sae_generic.txt file. To find it, click Start>Search>For files or folders... and search for sae_generic.txt in your hard drives. It should pop up. Then, open the text file, hit Ctrl+F, and search for LM1. This should take you to the LM1 section of the file where there are two equations (LM1_1 and LM1_2). Edit them so that the calculated AFR is external voltage plus 11. Make sure those are the ONLY changes you have made to that file, close it, and click yes to save changes.

The problem with doing it that way is, you'll have to update that file anytime you uninstall/reinstall/upgrade the software. Building a new PID in the user config custom pid txt file will import during an upgrade.

squealingtires

iTrader: (14)

Wow thanks! I had searched for a specific and idividual LM-1 pid file and couldn't find one. Ok so here is what the generic_sae.txt has to say about the LM-1 (I've adjusted the equations as recommended)

# Innovate LM-1 WBO2
# ========================
*CLC-00-928
V 0.0 5.0 .1 "{EXT.AD1}"
AFR 10.0 30.0 .1 "{EXT.AD1}+11"
*CLC-00-929
factor 0.0 2.0 .1 "{CALC.AFR_LM11.AFR}/{GM.AFR}"
*CLC-00-930
V 0.0 5.0 .1 "{EXT.AD2}"
AFR 10.0 30.0 .1 "{EXT.AD2}+11"
*CLC-00-931
factor 0.0 2.0 .1 "{CALC.AFR_LM12.AFR}/{GM.AFR}"

Can I just paste this info into a new text file to create a new pid? Is this all the information that Flashscan needs? How does one go about that?

joecar

Squealing,

There's a tutorial on creating your own custom pid equations (calc_pids.txt) and sample files in the EFILive Scanner subforum; let me know if you can't find it.

SSpdDmon

iTrader: (10)

Almost right....just have to change the other two numbers (the range) to 11 and 16.

Personally, I just modified that file and saved it. Works fine. But, I was VERY careful to make sure that was my only change. And, I know if I ever upgrade the software, I have to make the changes again. Like Joe said, check the EFI forum for instruction on how to make your own custom pid file the recommended way.

squealingtires

iTrader: (14)

Thanks alot guys! It was easier than I thought it would be. I understand the calc.pid file enough to add in a Calc.Ben pid based upon my new AFR pid. The wideband LCD is now giving me the same information on the screen as Flashscan is interpreting the analog output voltage. Much appreciated and now I'm one step closer to COS#5

SSpdDmon

iTrader: (10)

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