DSMLink and wideband

[99redgst]

So I'm looking into picking up a wideband in the near future. I am using DSMlink to tune right now. I'm wondering if there is a way to log a wideband with DSMlink along with the rest of the log. Basicly replace the calculated A/F ratio with a wideband reading. I think I saw someone talking about feeding the signal to the ECU to work with DSMLink. I would like to go with the FJO wideband but don't really want a gauge, would rather just have it in the log. I know that you can hook it up to a laptop with thier connectivity kit, so could it just be intergrated into DSMLink?

 

[99redgst]

I found this in a post from a few months ago. I guess I understand how it could work. Anybody else doing this?



As long as your wideband has an output wire for data, you should be able to log via serial cable. So all you need is Windows Hyperterminal and a properly pinned out serial cable.

I have a wideband and dsmlink. Once I get my car back together all I need to do is disable a sensor I will not need (ie 2nd O2 sensor or MAP) and send the wideband signal over the disabled sensor wiring then log the 2nd O2 via dsmlink which is now a wideband signal. So I won't need the serial cable and will be able to see everything in one log file.

You can log via a serial cable but I would imagine it would probably be a bit difficult to match up the two sets of logs. One being the wideband only log and the other from your logging software TPS, Timing, Primary O2, RPMs etc.

 

[guitarXgeek]

That's what the dsmlink user forums are for . I've seen several people on those forums use the rear 02 for the wideband, so I'm sure it works just fine!

 

[99redgst]

I never got the info on how to get on the forum. Later I heard that you need the serial # off thew chip or something? Don't really want to take the ecu back out just to get the #. I'll just wait till theres an upgrade and sign up then.

 

[CatchMe]

I just got a PLX wideband and im going to run it through dsmlink (installing it tomorrow)... heres some good threads i've found:

http://www.dsmlink.com/forums/showthread.php?s=&threadid=1038&highlight=PLX+install

http://www.dsmlink.com/forums/showthread.php?s=&threadid=1768&highlight=logging+wideband

http://www.dsmlink.com/forums/showthread.php?s=&threadid=779&highlight=wideband+hook+up

 

[CatchMe]

I didnt see you arent on the link forums - you need to get on there asap, there is ALOT of useful info on that forum. Basically to install it you need to run the analog output (white wire on PLX) from the WB controller to pin 75 on the ecu (rear 02). Then set it up to log in captured values on dsmlink options.

 

[guitarXgeek]

Basically to install it you need to run the analog output (white wire on PLX) from the WB controller to pin 75 on the ecu (rear 02). Then set it up to log in captured values on dsmlink options.

Yes, but can't you just cut the wire going to your rear o2, and splice the WB output wire on to it instead? Just seems easier that way.

 

[Tallen]

If it were that easy, you wouldnt need a wideband box in the first place.
The only usable signal from most boxes is a fake O2 signal that goes to the ECU to make it happy. The wideband output is in a different "format".

 

[CatchMe]

well the way the PLX harness works...

It runs all the wires all the way into a black control box which mounts inside the car and the output wire comes out of the control box/display. Also they say to ground it as close to the ecu as possible.

 

[99redgst]

So do I need to get the wideband to narrow band conversion to feed it 0-1v or can it read the full 5v? Thanks for the help guys.

 

[Dallas J]

I use the stock front o2 sensor bung for my PLX wideband. It has a narrowband and wideband output from the main box/display. I soldered the narrow band wire to the stock front o2 wire at the ECU, and the wideband wire to the MDP sensor. So far everything is working fine. With the narrow band cruising and Idling are 14.5-15.0, and tuning is so much easier.

-Dallas J

 

[CatchMe]

I use the stock front o2 sensor bung for my PLX wideband. It has a narrowband and wideband output from the main box/display. I soldered the narrow band wire to the stock front o2 wire at the ECU, and the wideband wire to the MDP sensor. So far everything is working fine. With the narrow band cruising and Idling are 14.5-15.0, and tuning is so much easier.

-Dallas J

Thats a good idea to use both outputs...Although, I think they recommend that the 02 sensor is to be placed down a bit further.

 

[Dallas J]

It didnt say anything in the instructions of how far down to put it. I didnt feel like putting it in the rear, or having a new bung welded in so I did it that way.

-Dallas J

 

[ikickuintheball]

It said it's best to have it 12" downstream. The o2 sensor housing is perfect. Also, it said not to have temps over 1600*F. The o2 sensor housing is just right. Mine is fine, and I've had it since August. Even if the O2 died, it's only $30! hehe

 

[Dallas J]

It said it's best to have it 12" downstream. The o2 sensor housing is perfect. Also, it said not to have temps over 1600*F. The o2 sensor housing is just right. Mine is fine, and I've had it since August. Even if the O2 died, it's only $30! hehe

Hell yeah, thats way nicer than paying $80 for a new narrowband. Another plus for widebands.

-Dallas J