Possible to use a wideband?

[jmgtp]

http://www.innovatemotorsports.com/products/lc1.php

has anyone seen this sensor? From what I understand it is a wideband that has an output that can emulate a narrowband. Would that make the narrowband output more accurate than a standard o2 sensor? I believe you can also dictate what ratio is considered stoich by programming it via a laptop.

What I'm getting at: would it be feasible to have the ecm read the o2 sensor even under power enrichment mode rather than go into set fueling tables, and using the wideband sensors narrowband output would it be accurate enough to work?

didnt mean to put this in the articles... my bad, mods move?
For example, if you wanted a 12:1 mixture at WOT the sensor can be programmed to dictate that 12:1 is stoich and the ecm will try to keep the mixture at stoich using the sensors output. If the accuracy on the narrowband output was good enough would this work for WOT? I believe PE mode kicks in when the TPS % reads 70% could that be modified to a value that cannot occur, say TPS = 110%? Forcing the ecm to use o2 input even under WOT. Even if this could work there would have to be a way to switch to 2nd o2 sensor under normal loads otherwise it would be feeding 12:1 a/f all the time. It does have mention of 2 programmable outputs. This is all probably wishful thinking.

[jmgtp]

mods, please move this to appropiate section, didnt mean to post it in articles.

[Superdave]

tricking the ECM is never a good thing. The BLM's won't react quick enough and will probably max out if you tried this.. most likely it would run very lean and you'd blow the engine.


A Wideband is an accessory, IMO the Narrow band output from it should never be used to run the ECM.

[black05gt]

Hmm, yes, wishful thinking, and imho, asking for more problems than it's worth. I think you are not fully understanding what the wide-band's purpose is - yes, it CAN replace a narrowband sensor, but you MIGHT not want to - from what I have read, best practices say to use the OEM narrowband for "normal" O2 sensor readings, and use the WBO2 for data scanning. Without the ability to "switch" O2 sensors when not at WOT, you are asking for a very rich mixture all the time. Don't know how you would pass emissions testing like that (assuming your state does emissions testing).
Overall, sounds like your idea needs further consideration.

BTW, as you can see in my sig below, I have an LC-1 installed, and have been logging and tuning using it for over a year now.

[sprucegagt]

Hmm, yes, wishful thinking, and imho, asking for more problems than it's worth. I think you are not fully understanding what the wide-band's purpose is - yes, it CAN replace a narrowband sensor, but you MIGHT not want to - from what I have read, best practices say to use the OEM narrowband for "normal" O2 sensor readings, and use the WBO2 for data scanning. Without the ability to "swtich" O2 sensors when not at WOT, you are asking for a very rich mixture all the time. Don't know how you would pass emissions testing like that (assuming your state does emissions testing).
Overall, sounds like your idea needs further consideration.

BTW, as you can see in my sig below, I have an LC-1 installed, and have been logging and tuning using it for over a year now.

X2

I'll add that no matter what you've heard, the stock O2 sensor is very good at reading 14.7:1 AFR. Use it for this purpose and leave the Power Enrichment moments for scanning with the wideband O2.

I also get the feeling that you think the wideband O2 output will also show the narrowband simulated output. Sorry, but this is just not possible. Most ECM's run a narrowband O2 that only swings from 0 - 1 volt DC. All wideband O2 sensors swing between 0 - 5 volts DC. Even with this output simulated down to 0 - 1 volt DC, it still won't tell the ECM anything other than 14.7:1 AFR.