Noob Wideband Question

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pwjm
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Noob Wideband Question

Post by pwjm »

Can I replace the stock o2 with the new Wideband?

I'm throwing nistune and a wideband on my car while its stock (bone stock) to get a feel for it and wanted to know if I could save myself some trouble by not having to weld in a new sensor bung on the exhaust.
Dlauth
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Post by Dlauth »

Yes you can install just the wideband. My wideband has a narrowband wire coming off it and all you do is wire that into the stock narrowband signal wire going to the ecu and tricks the ecu to thinking its working. Also on my wideband I do not have the narrowband hooked up and it ran fine when I had it.
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Post by emo_tactical9 »

That's exactly how my car has been running for almost 2 years now.
That's also how I tuned my Stg 1+LC bin. :D
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mo_hish
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Post by mo_hish »

Yeah, like Dlauth said, theres a narrowband wire that reads 0-1v. Just take that wire and tap into the o2 sensor wire on your ecu. You wont need the plug that the original o2 sensor used anymore when you do that.
pwjm
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Post by pwjm »

Perfect!! My current o2 harness wire is kind of mangled anyways, It'll be nice to take it out of the equation properly.

I noticed on the specs for the AEM UEGO It said it has an output for Stand alone ems's that's 0-5 volts. I'm assuming that's the narrow band wire you're talking about?

i can't wait to start fiddling with this!
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Post by mo_hish »

No. There's actually two wires. The 0-5v wire that you're talking about is for datalogging... There's another wire (I think the blue one is datalogging and the white one is the narrowband output, but you should double check) that's 0-1v that can work as your narrowband input into your ECU.
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Post by 240drew »

the blue one is a serial input, and the white one is a 0-5v output, I dunno if you can hook it up to a narrowband input. Correct me if I am wrong but it sounds as if the uego doesn't emulate narrowbands. I have a seprate bung so it doesn't matter to me.
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Post by pwjm »

RED <Power>
Connect to a switched 10-18 volt power source utilizing a 10A fuse.

BLACK <Ground>
Connect to a clean power ground.

*WHITE <Analog Output><optional hookup>
Connects to any Stand Alone ECU unit that accepts a 0-5 volt input.

*BLUE <Serial Output><optional hookup>
Connects to a RS-232 com port for hyper-terminal data logging.
Is that to say that narrow band ecu inputs are between 1-5 volts?

has anyone used the AEM widebands specifically with a factory ecu in place of the stock o2? Please no speculations.
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Post by mo_hish »

I'm pretty sure that you can make it work for narrowbands. You just have to change the settings to P4 (AFR Nernst Emulation) and it'll work as a narrowband. But now that I think about it, I'm pretty sure that when you have it in that setting the gauge will work as a narrowband as well so I'm not sure you want it to do that as that wont help much with tuning. I have another bung too so I'm not able to speak from experience.
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Post by mo_hish »

You can always just give this a quick read.


(page 9)
http://www.aempower.com/images/products ... 0-4100.pdf
pwjm
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Post by pwjm »

hmm, how about this:

Does anyone know what the nominal voltage is for the stock o2 sensors? I just checked the FSM and didn't see it... which is weird.. it should be in there.
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Post by Ihiryu »

The UEGO can emulate the narrow band signal, there's a lil hole in the back where you can adjust it with a screw. There's a few different settings.
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Post by niko »

If you dont have your stock O2 sensor hooked up, or the the wideband emulating a narrowband sensor, you will get a slightly worse fuel economy when your taking it easy and cruising. On higher rpms and performance wise you should still be good. This is due to the closed loop and the open loop mode of the ecu.
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Post by zenki-des »

Dlauth wrote:Yes you can install just the wideband. My wideband has a narrowband wire coming off it and all you do is wire that into the stock narrowband signal wire going to the ecu and tricks the ecu to thinking its working. Also on my wideband I do not have the narrowband hooked up and it ran fine when I had it.
which wodeband do you have im curious if mine has that wire . currenty i dont have my first o2 hooked up only my second one . im running the innovative lc-1 mine runs fine but just curios
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