I did some searching around and haven't concluded if anyone has been able to hook a 5v WB O2 sensor directly to the E6K with the 5v O2 sensor enabled? I'm thinking of getting this unit and trying it out, as inexpensive as it is... some places have it listed for almost $200 so I'm certain its the real deal.

http://www.wbo2.com/lsu/default.htm

 

I have both the WBO2 and E6K. So far, both work like a Champ!

WBO2's "WBLin" output connects to the E6K's "Spare Input." You'll need the E6K 6.34u software to have the 0-5 voltage options. Then configure the Haltech's "Spare Input" (Input/Output Page) to "General." The WBO2 will output the AFR voltage as [(AFR-9)/2], such that:

AFR Voltage
10 0.5
11 1.0
12 1.5
. .
. .
. .

Under this configuration, the AFR voltage is then read in the Engine Data or the Datalog pages as "Spare A/D."

 

Unless you are running the M&W wide band unit your readings with 6.34u may be inaccurate... All wide band units do not have the same analog output specs.

 

I agree with MoeSpeed in that the Haltech uses an M&W profiled voltage-to-AFM conversion. IF you setup the E6K to DIRECTLY display the AFM (i.e. "Spare A/D" or "Trim Input" to "UEGO AIR/FUEL"), it will display that possibley inaccurate AFM.

However, if you setup the Haltech like I describe above, and correlate the "Spare A/D" voltage displayed to the voltage-to-AFM output of your particular WB, it's possible to infer the actual AFM sensed by any 0-5v WB.

 

I don't see a reason why you coulden't do the same thing using the LM-1 WB. Just program the output to suit the haltech.

 

Yep! It can be programed to fit almost any need, in that sense.

 

I got you. One other thing to point out is that any software version will show the voltage display on the "Spare A/D" when set to general. The 6.34u and above versions can do the same as well as display AFR from the M&W UEGO unit via the "Spare A/D" and/or the "Trim Control" inputs.

 

If this unit can do what you say, here are the specs you will need on this PDF link:
http://www.mwignitions.com/pdf/UegInf8.pdf
On this page:
http://www.mwignitions.com/uego.htm
Page 5 has a graph of output voltage vs AFR

 

i'm gonna have to try that. i was just logging 0-5V . i was using 707 and looked around but couldn't find that option

 

So is it possible to use it via the trim control inputs... I'm wanting to use my Spare A/D for aux rev limit... ie when I take it in for services that I don't do. I'll flip through the ol manual and see what I can dig up too.

 

For the times you take the car in for work you could always just fire up the laptop and reset the rev limit then change it back after the service.

 

I am using the same configuration as you said above on my Haltech 6.34 as well as two other Haltech 6.34 on friends' cars. However, I noticed that the voltage is somewhat off by 0.30Volts on the Haltech. During warming up stage, you should read 2.50V on the WB02. However, Haltech displays 2.80V. I have verified the output on the WB02 itself and sure enough it outputs 2.50V. It follows that the rest of the readings may be 0.30v off or so.
Another thing you might have noticed is that it reads 0.47V on Haltech data page when there is nothing going into the spare AD. I think this has to do with the inaccuracy with reading low voltage on the spare AD.

 

last time we dynoed we were confused because the wb display and the spare ad were different, and then on top of that the dynos wideband was also different.

mike

 

in downpipe WB and tailpipe dyno WB are gonna be slightly different readings since you are getting the reading at different points in the exhaust. tailpipe is supposed to be a little laggier as far as response

my voltage readings were all correct. i did the math from voltage to actual AFR and it matched up 100% since i had both on at the same time

 

Also if your exhaust has a small leak readings will be off in the tail pipe.

 

this is probably due to the fact that the display and the e6k are not connected with the same ground.

 

so how EXACTLY do I hook this 5 wire Bosch sensor to my E6K, for dataloging.

I cant find that "WBLin" that you speek of, is it one of the output from the sensors??

 

actually they do have the same ground. hmm maybe the voltage chart was wrong? now i'm curious

 

which wideband ?

 

its the dyi with the ntk sensor

 

This is awesome info guys, I appreciate it. The aux rev limiter isn't a big deal I spose... I did happend to email Haltech support out of curiousity and they said that it is necessary to use a driver to interface the ECU and WBO2, it sounds to me like the heating control of the WBO2 is the reason for this. Something about the Haltech not properly controlling the heating of WBO2's, I've read a bit into how WB's work, and the heating control is quite important. However I can't argue the fact that a couple of you have got it working fine. Far as the voltage offset goes, if it is linear, maybe you can just put a Potentiometer inline with it and use it to fine tune the offset with respect to what the haltech thinks its seeing.

 

there's a place selling a bosche wideband sensor for $60
can the haltech actually control it, or do you need a controller-then use an output to the e6k?

 

you need the sensor, sensor controller, E6K

You can't just have a sensor and a E6K

 

so exactly which sensor/controller do you need and where to get it?
thanks

 

So after setting this up would it be possible to hook up a display like the FJO ?