OpenFlash Tablet Wideband O2 Kit
 

Hi guys,
As some may know from our Facebook page, we have been working on integrating a wideband o2 sensor to the OpenFlash Tablet. And it works great. Right now we are just trying to source some connectors so that it can be 100% plug and play. Currently we are just replacing the secondary o2 sensor with a Bosch Wideband o2 sensor (LSU4.2). It plugs into a wideband controller. And that will hopefully plug right into the secondary o2 sensor connector once we source the needed bits. We have added a "Wideband AFR" channel to the OFT logging that converts the analog output of the wideband controller to AFR. As you can see from the following graph, the factory AFR and Wideband AFR reads very similarly until exhaust temps begin to rise (high high RPM WOT). At which point the factory o2 sensor reads leaner than they really are (which is certainly on the safe side of things):

http://www.datazap.me/u/shivvishnu/o...12&zoom=14-135

http://i85.photobucket.com/albums/k4...40186505_n.jpg

http://i85.photobucket.com/albums/k4...36968850_n.jpg

This secondary o2 bung location is ideal for those with cat-less headers (like the OFH) since it is recommending that no cat be upstream of the wideband sensor. For those with catted headers, it is recommended to install the WB sensor just upstream of the cat using the supplied weld-in bung.

I should have word on the plug-n-play connectors later this week. At which time we will be able to give release date estimates and prices. But expect it to cost around $200 for the OFT wideband kit. In the meantime we will be fine tuning the calibration to ensure best possible accuracy :)

Cheers,
shiv

This is awesome news. It is also nice to see so real confirmation about the accuracy of the factory unit. Is this just you preparing that next step for your turbo shop car?

Great job! Will the ecu then use the wideband data in place of the primary sensor? Will you be able to provide the logging address for this data, for those of us who also log with tactrix?

- AdrianG

Hi Shiv,

I noticed that the Primary open loop fueling AFR Target in tables is about 12.5.

However in a couple of post you say you target 11.6-11.8 AFR at WOT on Gasoline.

Most peoples logs show AFR in mid to high 11 for AFR. And low LTFT.

Jusr wontering why its not closer to target in Fueling table ie 12.5

Is this due to the inaccuracy of stock o2 sensor you talk about above.


Thanks Steve

Obviously this is not needed for everyone. I assume this is to be able to get the best target AFR for optimizing power by not relying on the more inaccurate factory sensor. Will you be using this info on your logging to optimize the of the shelf tunes? Or is that a bad idea as those of us with the OEM sensor will see a different reading? Sorry if I did not word that appropriately.

@shiv@vishnu is this ~$200 to include the sensor as well?

I would think so. It is only a $60 sensor.

[ame="http://www.amazon.com/Innovate-Motorsports-3737-Wideband-Sensor/dp/B000COBT9A"]Amazon.com: Innovate Motorsports 3737 Bosch Wideband O2 Sensor LSU4.2: Automotive[/ame]

Damn wide bands have dropped in price! Awesome

I'm curious how well the wideband will accurately read with the OFH since there is an extension in the place of the secondary sensor.

Not an issue. In fact it's desirable to have the tip of the sensor flush with the inner surface of the pipe or even recessed a bit for better heat protection/longevity. Recessing it more will theoretically compromise response time but I have not seen any evidence of that be an issue when logging at 13hz.

Alright!

Curious about this as well...

@shiv@vishnu - any chance you'll be selling just the harnesses sans sensor? I'd like a way to tidy up my existing wideband install.

Will this support any wideband O2, for those who don't want a Bosch LSU? Also, which wideband controller are you using as this is a big factor in how well the sensor works and lasts?

Well... looks like I owe you $700.

Hmm I think I will take one lol. They ready yet?


Sent from Spaceball 1

So I've sent shiv a couple PMs over the last few weeks with no response so hopefully I'll get a bite here.

I have the Innovate MTX-L Wideband Kit which uses the same Bosch sensor you mentioned using in an upcoming offering from you folks (LSU4.2). Can I wire the 0-5V signal wire into the factory secondary O2 wiring and have it work with the OFT setup?

Also I am looking at purchasing the OFT-OFH combo but I am looking at the Crawford BPB as well. Will you be offering a package or should I get it from Crawford? I know you are working on tuning for it now but if you have an ETA I would hold off on getting it to support you folks.

sales@vishnutuning.com is where you should be asking your questions if you can't wait for an answer. Shiv is incredibly busy and has stated on numerous occasions that his PMs are the last thing he checks. Emailing them would most likely get you an answer much quicker.

Hi,
Definitely send any sales related messages to sales@vishnutuning.com. My PM inbox tends to get pretty cluttered and hard to manage at times. But to answer your question, we will be offering OFT/BPB combos and BPB at discount prices for OFT customers. I should have prices/dynos up within the next couple of days.

I have not tested the Innovate MTX-L myself but as long as the controller has a user configurable 0-5 analog output, you should be able to wire it directly to the signal wire of the secondary o2 sensor. Pretty easy stuff!

Shiv

Thanks, will do.

Shiv. The ability for a plug and play wideband just solidified my sale to you. I came from evos and I just got my brz a week ago. Haha my aem wideband will be going on sale in the Evo forums haha.

But before that. I'd like to see the accuracy on the tablets to read the wideband.

any update on this?

Bump for a potential update from @shiv@vishnu. Evidently I borked my secondary O2 sensor when I installed my OFH. Sent an email today to sales asking if you guys had it for sale and got a reply that its not ready yet. Went ahead and ordered another O2 sensor but I'd love to swap this wideband in whenever its available. Any idea when you'll have these for sale?

Secondary 02 sensor is plugged atm. I'm assuming since this is just for cat efficiency testing its OK to run it like this until the new one comes in and I'll just have to deal with a CEL and no cruise control or am I mistaken?

Any updates on this?

bump

I recently asked about this in an email as my OFH is about to ship. The response I got was literally "no idea".

Any updates on this device?

Is this still in the works, or has it been scrapped? Seems it would be a valuable addition...

I wouldn't say the idea has been scrapped. In fact the OFT already has the means to interpret and display a wideband signal fed into the secondary O2 sensor signal input. The channel already exists in the datalog list. But the plug and play kit is on hold since a few other projects (our turbo kit development being one) has been given priority.

DIY-able with a wiring diagram and sensor recommendation? Sounds like it might be but... no idea. I just really like the idea of having a more accurate reading on AFR - maybe I'm just paranoid. :)

Hey Shiv/others, any recommended wideband sensor and wiring diagrams to get this working without plug and play? I'm getting a turbo kit and don't want to start tuning without this

Moto mike makes this harness. Moto east tuning.

Thanks but I'm from Australia, which is why I was looking for the DIY solution.

I got a 4 pin O2 sensor plug from a wrecker and wired my narrowband signal back into that, with a 20 ohm 25W resistor across the heater terminals.

All wiring/pin info on:
http://www.ft86club.com/forums/showthread.php?t=57902

I have to say I am pretty disappointed by the lack of updates on all your products. You tease us and don't really deliver. I have your tablet and header, and I am very happy. You would have a lot more of my money if I could actually know what is going on with your development and you followed through. Is this a product I can buy? If so sign me up, now. No reason this thread is a year old and people can't buy this product.

I understand you do things for many other platforms, but a well ran business won't take on more that it can chew. I'd rather be the best I can with a few then mediocre with many.

I would have bought a OFT350 kit months and months ago, but you don't seem to exist. I hope this gets yor attention and you understand my frustration, rather then taking offense. I will have to look elsewhere for my future investments if this goes ignored.

I have been feeling the exact same way lately.

I bet you will hear something on the oft350 in the next couple weeks or so... I wouldn't hold your breath on the o2 sensor plug in play anytime soon.

any news on this?

i got an avo turbo kit and have an OFT

I'm thinking I'm going to have Shiv tune it, but I don't know what I need to do about logging with a wideband. I need one, yes?

If so does anyone have more info on which to buy/how to wire it up or if there is a plug and play version out yet?

Thanks.

You can rescale the stock O2 sensor so it can read like a wideband. the correct values are on here somewhere, i used it like that to map our kraftwerks sc project and measures exactly the same as my innovate.

sure can stock sensor good to about 10 afr , ztan scaled it against his wideband a while back

http://www.ft86club.com/forums/showthread.php?t=82875

http://www.ft86club.com/forums/attac...1&d=1437781863