i read a while ago about an in-car wideband O2 setup. where can i find it ????

 

Try this link.
http://interstice.com/~garfield/

Good hunting,
Richard <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

 

another vote for fjo.

 

I've got the FJO on my Incon turbo car and it has made tuning so much easier.

Don't get the in car display...just get the logging kit if you go with the FJO. Gary is 100% right about needing the ability to log to tune precisely.

Scott

 

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by red ws6 99:
<strong>You can also do one of the DIY widebands for about $300 but no logging. Without logging it makes it very difficult to tune.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I've got one of the DIY widebands coming. I've got the display box for it already, mix up on shipping from downunder <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />

It's the OZ-DIY Wideband setup. The are now onto Version 1.5 that provides serial port logging of wideband AF, RPM and 2 additional analog inputs. Should be interesting.

In additon, there is a function on the WB to recreated a normal switching O2 signal if you'd like to replace one of the factory O2's w/ the wideband.

For about $150 + the sensor you can't beat it, gotta love the US$ exchange rate <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

There is also a mailing list for the unit

http://www.techedge.com.au/

 

that is just awsom!
harlan , you probably have the answer to this. do you know if the OZ-diy-wb unit and display can be connected to a laptop? it says on the web site that the you could get the 5301 display and the have the rs232 cable too ( package deal), so does it come with software too?
could it log my runs, or is the logging option just on the 1.5 version?

i don't think the kit comes with it's own O2 sensor , so can i use a stock sensor?? any certain sensor i should use ( the one they had on the site is kinda pricey!)
could you please share any info you got?
thanks

<small>[ December 23, 2002, 11:57 PM: Message edited by: 1dirtyZ ]</small>

 

This is what I use www.fjoinc.com its about $900 and does data logging of afr, rpm and 0-5 v source. You can also do one of the DIY widebands for about $300 but no logging. Without logging it makes it very difficult to tune.

Gary

 

Thats cool on the logging with the DIY, they barely had a display when I got the FJO. Thats cool about using it for a more accurate o2 for the pcm. For the DIY, FJO and quite a few others you need a UEGO sensor (made by NTK, Honda, etc). It costs about $250, so no you cant use the stock, its the whole reason why the pcm can not accurately read anthing but 14.7.

Gary

 

As i figure it, I only have the 5301 display in my hands right now, the 5301 itself sends you an RS232 compatable signal w/ just AF readings.

You can use that w/ the 1.0 and 1.5 versions.

The 1.5 version itself has the capability to monitor RPM, AF, and 2 more inputs and send it out on serial along w/ being connected to the 5301 display. The DIY users have some simple PC and Palm software to read the info, and the 1.5 logging software is in the DOS developemnt stages.

Problem there is running ATAP and the wideband at the same time.

Now, there are sensor inputs to the PCM that can be read by ATAP but you'll need to rescale the data after you record it to get usable info.

I'm running a second autometer fuel pressure sending unit into the AC pressure input to get log data on fuel pressure. Same connector, and the AC sensor has the 5V supply and ground for the fuel pressure. You could run the wideband in there.

The Narrow band options on the Oz DIY lets you set the "switch point" for the generated signal to simulate the stock sensor.

And you must use an NTK L1H1 Wide range UEGO sensor w/ the kit. It's very different from the stock type switcher. They can be had for about $140 per sensor, but seem to be on galactic backorder right now. It was the factory sensor on a lean burn honda in the mid 90's so it can be found at part stores.

FWIW, this sensor and the NTK controller the DIY kit is based off of is the same unit we use at work for dyno and vehicle development. Just to give you an indication of the accuracy of the sensor.

 

I have been using the DIY for a while now, the 'old' version has logging but not for RPM. I put up a page a while back. http://personalpages.tds.net/~kpevin/ its a nice deal for ~250.00 with the sensor and not hard to build. The rpm logging will be an addon for the 1.0 or 1.5 It has saved me a lot of time on a few cars now..

 

thanks for clearing up the sensor issue.

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">I'm running a second autometer fuel pressure sending unit into the AC pressure input to get log data on fuel pressure. Same connector, and the AC sensor has the 5V supply and ground for the fuel pressure. You could run the wideband in there.
</font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">you totaly lost me there!

does anyone know where/how the unit picks up the rpm signal??

KP, what length cable did you get? was it enough?

<small>[ December 24, 2002, 02:12 AM: Message edited by: 1dirtyZ ]</small>

 

I was just saying you could run the Wide band ouput into some unused sensor input on the PCM and read it via atap. Then you'd have it match up w/ RPM, TPS, MAF, Advance, etc.

I'm betting the WB will get the RPM signal from the Tach out on the PCM. I happen to know the pin from memory <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

 

It would be very cool if if you could use an unused sensor input to the PCM for the wideband output and use atap. I am curious to see what they will use to pick up the rpm, as long as it works.. I like the clamp on rpm probe from the FJO <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

I am still a little confused on exactly what logging capabilities/features the basic 1.5 unit will have by itself, its my understanding that the RPM pickup/logger/fake NB/0-5v linear output/will be an add-on daughter board or an external box for the ver 1.0 and its not finished yet. I havent looked since I ordered it, I'll have to read through the diy yahoo group to see I guess, or i'll find out when the 1.5 kit gets here <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

I made my own cable for about $3.00, its about 8 feet long since I use it on our dyno here outside of the car. If you are going to leave it in the car I would get a shorter main cable and just run the small display cable in the car..

 

thanks guys!
using the unused input to the pcm is an awsome idea!
please forgive my stupidness, but if i used the AC pressure signal does that mean i have to ditch the AC ??

could you keep us updated/informed of your progress??

kp, do you think the clamp on pick up would survive in the engine compartment for long periods of time? i.e daily driving??

 

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by 1dirtyZ:
<strong>thanks guys!
using the unused input to the pcm is an awsome idea!
please forgive my stupidness, but if i used the AC pressure signal does that mean i have to ditch the AC ??

could you keep us updated/informed of your progress??

kp, do you think the clamp on pick up would survive in the engine compartment for long periods of time? i.e daily driving??</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I just bought a dynojet wideband setup for our dyno so I wont be messing with this anymore, I'll build the 1.5 controller kit when it arrives and sell it off as well. Harlan will figure it out I'm sure <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" /> The signal will have to converted to whatever the PCM sees and there may not even be a way yo use it like that - I was just thinking out loud.

As long as the pickup is not laying on the header I dont see why it wouldnt last, I just like it because its portable. If you were to leave it in the car hard wiring it in would be best. I have installed FJOs and they are nice units, just a bit pricy.

I am going to be selling my ver 1.0 DIY, cable, display and sensor so any interst let me know

<small>[ December 24, 2002, 12:12 PM: Message edited by: kp ]</small>

 

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by y2khawk:
<strong>I was just saying you could run the Wide band ouput into some unused sensor input on the PCM and read it via atap. Then you'd have it match up w/ RPM, TPS, MAF, Advance, etc.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Would there be a problem with the signal sent from the autometer FP sensor, vs. the signal which was normally sent from the A/C pressure unit, or would they both read the same range of psi? I have no clue what pressure an A/C system would run at, but that's a great idea..

I'm assuming all it would take to have the PCM read this, is to disconnect the wire from the AC pressure sensor, and run it to the FP sensor? Sounds almost too easy.. <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

I'm also a bit curious about the AC working with this mod done. Maybe you could put a relay or something in there to switch which sending unit sends information to the PCM..

 

kp- I tried PM'ing you, but I got an error. Please PM or e-mail me with your price for your setup, thanks. <img border="0" title="" alt="[Cool]" src="gr_images/icons/cool.gif" />

 

SMOKINV8 I sent you an e-mail..

You could probably use the autometer FP output but you will have to figure out the scale, also at some point the reading may set a code. It also depends on the what the PCM is seeing at the a/c sensor, is it just a ground referenced signal or is it voltage referenced signal. If I remember you would probably have to use one of the wires after the FP gauge controller..

I would do some research before hooking up any wires <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

I have been thinking of doing something like that for a while but never got around to it. You could put a relay on it so it only uses that signal at WOT <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" /> Like I said though, just thinking out loud..

 

I never thought about running the wideband into the stock pcm so it could be logged with autotap. But I am logging both autotap and the wideband with a 4 port usb to serial converter. Soon will have 8 egt sensors logged also. Even the programs are dos based you could run them in a dos window and should get rs232 ports to work.

Harlan wont the DIY use a Honda wideband o2 "from the fast burn civic" sensor also, its a lot cheaper (it goes for about $220) than the NTK but identical. I know just about every uses the NTK, so doe FJO. The FJO has a nice interface for logging, you send it one command to begin logging and one command to stop. Makes it real easy to add the code to a custom program!!!!

Gary

 

The NTK sensor for the DIY, Motec, FJO etc is the Honda sensor (its made by NTK) - 97 civic VX or something like that..