AFR installation

Here you can ask technical questions about UTCOMP-3 / UTCOMP-PRO compatibility and features.
Pistou
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AFR installation

Postby Pistou » Fri Dec 18, 2020 3:20 pm

Hello,

I'm willing to retrieve signal from o2 sensor on my car but I understand I need a controller to get 0-5V voltage.

Image

Can you advise a simple cheap controller?

Thanks

ArT
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Re: AFR installation

Postby ArT » Fri Dec 18, 2020 10:07 pm

For AFR you will need wideband o2 sensor. Standard o2 sensor only will give you information about lean/reach mixture. Black wire is 0-1V signal as I remember.

If you sure that it's wideband o2 sensor, then controller will be required. But controller depends on type of O2 sensor. E.g. for BOSCH LSU 4.9 I recommend Innovate LC-2, but it can be any controller with 0-5V output.

Toomas
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Re: AFR installation

Postby Toomas » Sat Jan 23, 2021 1:50 pm

hi guys, what do you think about this one?

https://www.jaycar.com.au/wideband-fuel ... e/p/KC5486

cheers

ArT
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Re: AFR installation

Postby ArT » Sun Jan 24, 2021 8:41 pm

Not tested it and can't find datasheet/manual on site. Does it have 0-5V AFR output?

Toomas
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Re: AFR installation

Postby Toomas » Mon Feb 15, 2021 12:30 pm

Hi mate, and sorry for late reply, its but hard to get the information! Here is the connection diagram
Attachments
IMG_20210215_135757_01.jpg
IMG_20210215_135757_01.jpg (689.96 KiB) Viewed 3354 times

ArT
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Re: AFR installation

Postby ArT » Tue Feb 16, 2021 8:51 am

On schema is "0-5V OUTPUT" to display - the same output will work with UTCOMP AdcX input but you will need to know also scaling (how 0-5V output is scaled to AFR value in your controller)


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