DIY WB help please

[John Larkin]

Can WB be logged on DS in place of normal O2?

 

[bruce]

Originally posted by John Larkin
Can WB be logged on DS in place of normal O2?

No directly.

The WB's output is 0-5 volts.

It's also 0 being rich, and 5 being lean.

And Thank You.
The address I had for you was inop., I'd tried to write, earlier.

 

[John Larkin]

You're welcome; you took to time to sort this out so it's a small token of my appreciation. I installed ME-R last night and it fired up, 925 rpm idle, smooth! So far so good.

Since DS is not an option, do you have a recommendation for a display at this point in time? I don't see much out there other than the Techedge display or a DVM. I'm trying to stay true but...... What I'd like is a numerical LED display so it can be seen in lowlight conditions. LCD, unless backlit (and that is marginal at best), isn't going to cut it.

 

[bruce]

If you want to just DO IT.

Then you can use a simple voltage divider, and log it into the original O2 pin.

What you CAN do.
I build a voltage divider.

----From WB -------^^^^------- Out -----^^^^--------II>>
10K 2K Ground
1/8 th watt 1/8 watt

10K meaning 10K resistor.
2K meaning 2K resistor.
Out means to oem O2

I tried talking Ken Chu into including the option of something like this input into DS but that didn't work.

It'll be off screen but you can at least read it.

I'm no EE, Jim, and the lithium crystals may not hold up, but we're giving ya 103%, Capt'n.

There is another thread running about WBs, and at the one site they showed an AFR meter that worked with some other WB, If it's a 0-5v output might be close enough to get you into good neighborhood readings.

 

[Taffy]

Bruce, the WB kits that I sell have a 0-1v output for use on the AEM and the Hondata. Can that output be fed back into the TR computer and be read on DS?

I actually have 2 kits, one that has a readout and one that only has an output (0-1v) for various computers.

Bruce, if you like I will send you one (just for you to check out, if you like. No charge, unless you want to buy it later.) so that we can find out properly. I like the work you do, so I am sure if you say it works, then it will!

Email me at eric@bnecustoms.com or call me 626-622-7389.

 

[bruce]

Originally posted by Taffy
Bruce, the WB kits that I sell have a 0-1v output for use on the AEM and the Hondata. Can that output be fed back into the TR computer and be read on DS?

I actually have 2 kits, one that has a readout and one that only has an output (0-1v) for various computers.

Bruce, if you like I will send you one (just for you to check out, if you like. No charge, unless you want to buy it later.) so that we can find out properly. I like the work you do, so I am sure if you say it works, then it will!

Email me at eric@bnecustoms.com or call me 626-622-7389.

I sent you an email.

Either would be fun, but if you send the 0-1 output version, I'lll make up a conversion table so the DS guys can at least have a look up table for what voltage is what AFR.