Custom Air/Fuel Meter
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This is a discussion on Custom Air/Fuel Meter within the Interior Mods forums, part of the Tech & Modifying & General Repairs category; Check this Air/Fuel Meter Any comments?...

  1. #1
    Registered User cail's Avatar
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    Custom Air/Fuel Meter

    Check this
    Air/Fuel Meter

    Any comments?

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  3. #2
    Registered User zoinks's Avatar
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    Is it connected to a wideband?

  4. #3
    Registered User cail's Avatar
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    it could be plug to a wideband or a narrowband

    on my car, it's on the wideband

  5. #4
    Registered User zoinks's Avatar
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    The main reason I asked is because an air/fuel meter isn't accurate at all even plugged into the stock "wideband" sensor. However, that looks pretty awesome and great job on the install. If you don't mind, would you give details on it. Was it a kit or from scratch. Again looks great.

  6. #5
    Registered User cail's Avatar
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    That wasn't a kit.
    I made a search on the web and find some good informations to build my own
    It's based on LM3914 chip, Using the signal from the wideband oxygen sensor to the ECU.

    What is the problem with oxygen sensor on Subaru? A lot of people say the rear oxygen sensor isn't accurate because it's after the turbo...and some people say the front oxygen sensor isn't accurate? So, to get a good signal, i guess i have to put a new oxygen sensor?WTF? Is there any good place to get the reading?

  7. #6
    Registered User zoinks's Avatar
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    First of all congrats for doing that yourself, it looks badass. Secondly, I'm no expert but from what I've read, the rear o2 is pretty much just there to monitor the downpipe cat. As for the front sensor, it is 'wideband' but not like an aftermarket one. So pretty much for tuning and monitoring A/F it doesn't really help. Maybe someone else who knows first hand will chime in (surprised no one else has). I'm just going on what I've researched. Most people just use an EGT to keep an eye on it.

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