serial wideband autove questions

[Slowrc]

First off, I know I am a pain because I am doing this backwards. I am trying to follow the tutorial, but it is written for someone with an analog lc1. I am using a serial lm1 and a 98 pcm .

I used (0) External wideband AFR (afr) instead of base efficiency numerator x-XXX like it says in the tutorial.

I tried to post a copy of my map, but the file was too large. Any pointers on doing that would speed up the communication on this issue.

Thanks, Rodney

[TAQuickness]

You're on the right track. Thanks for pointing that out. I will update the AutoVE tutorial to accomodate serial PID's in the near future.

[joecar]

Rodney,

If you're using serial wideband AFR, the you will be using these pids (regardless of which wideband you have):
WO2AFR1
BEN1

If you have two widebands cascaded (serial out -> serial in), you will also use:
WO2AFR2
BEN2

You will need to edit the properties of your BEN map to use BEN1 as data instead of the LC1 BEN (save the map with a new name e.g. "B0101 - serial BEN1"). [Actually, the EFILive software should be providing the new map].

Cheers
Joe

[Slowrc]

Selecting those pids I got it. Sould I use WO2AFR1 for map "A" and
BEN1 for Map "B" ???

Feel free to suggest some good reading material for me as I feel I am just following instructions and I'd like to learn more how it all works.

Thanks guys!

[joecar]

Yes you could do that... BEN1 is the most useful of the two.

See the tutorials section of the forum: forumdisplay.php?f=17 (http://forum.efilive.com/forumdisplay.php?f=17)

Some tuning books:
Ben Strader
Jeff Hartman
Greg Banish

[Slowrc]

Yes you could do that... BEN1 is the most useful of the two.

See the tutorials section of the forum: forumdisplay.php?f=17 (http://forum.efilive.com/forumdisplay.php?f=17)

Some tuning books:
Ben Strader
Jeff Hartman
Greg Banish

What exactly is ben1???
W02AFR1 AFR Average is set up as my Map A
Ben1_B factor Average is set up as my Map B
What is the difference between these? If the ben1 is the most useful, should I use it for map a and b or is that possible ? Why ?
I need a book of efi terms ...
As always, Thanks

[joecar]

EXT.WO2AFR1 is the wideband serial AFR from wideband #1.
EXT.WO2AFR2 is the wideband serial AFR from wideband #2.

GM.AFR is the "LS1" commanded AFR.
GM.AFR_B is the "LS2" commanded AFR.

BEN1 and BEN2 are the "LS1" correction multipliers:
BEN1 = {EXT.WO2AFR1}/{GM.AFR}
BEN2 = {EXT.WO2AFR2}/{GM.AFR}

BEN1_B and BEN2_B are the "LS2" correction multipliers:
BEN1_B = {EXT.WO2AFR1}/{GM.AFR_B}
BEN2_B = {EXT.WO2AFR2}/{GM.AFR_B}

It doesn't matter which map you put in position (A, B, C, D, E, F, G, H, I, J).

By saying that BEN1 is more useful I meant that BEN1 is what you paste/multiply during AutoVE...
AFR just gives the commanded AFR, whereas BEN1 is the ratio of actual to commanded
(i.e. BEN1 > 1.0 means you're leaner than commanded, BEN < 1.0 means you're richer than commanded).

[joecar]

If you have an "LS1" PCM, then you should be using GM.AFR and CALC.BEN1 (i.e. the ones without the _B).

[Slowrc]

EXT.WO2AFR1 is the wideband serial AFR from wideband #1.
EXT.WO2AFR2 is the wideband serial AFR from wideband #2.

GM.AFR is the "LS1" commanded AFR.
GM.AFR_B is the "LS2" commanded AFR.

BEN1 and BEN2 are the "LS1" correction multipliers:
BEN1 = {EXT.WO2AFR1}/{GM.AFR}
BEN2 = {EXT.WO2AFR2}/{GM.AFR}

BEN1_B and BEN2_B are the "LS2" correction multipliers:
BEN1_B = {EXT.WO2AFR1}/{GM.AFR_B}
BEN2_B = {EXT.WO2AFR2}/{GM.AFR_B}

It doesn't matter which map you in position (A, B, C, D, E, F, G, H, I, J).

By saying that BEN1 is more useful I meant that BEN1 is what you paste/multiply during AutoVE...
AFR just gives the commanded AFR, whereas BEN1 is the ratio of actual to commanded
(i.e. BEN1 > 1.0 means you're leaner than commanded, BEN < 1.0 means you're richer than commanded).


AHHHH!!!! great new info. Thanks. I'll make sence of it all soon enough.

[joecar]

Posts #7 and #9 contained a typo, I corrected it, see red ink.

[Slowrc]

If you have an "LS1" PCM, then you should be using GM.AFR and CALC.BEN1 (i.e. the ones without the _B).

Should I use Ben1 for the A and B map. I was reading ahead on the tutorial and I will have to paste the VE data from the B map to B0103 according to step 12 page 12. Seems right , but I'll ask so I don't mess up.

[joecar]

Oh, from the AutoVE tutorial, for 1997-2000 you use both maps A and B...

Yes, use BEN1 for the data on both maps A and B...

i.e. BEN1 (from serial wideband) now replaces BEN_LC11 or BEN_LC12 or BEN_xxxx (from analog wideband).

e.g. with serial wideband use only BEN1... do not use BEN_LC11 any more.