air fuel ratio gauge
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This is a discussion on air fuel ratio gauge within the Interior Mods forums, part of the Tech & Modifying & General Repairs category; anyone has it? i have a problem with the installtion can anyone teach me how thanks...

  1. #1
    Registered User chobits's Avatar
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    air fuel ratio gauge

    anyone has it?
    i have a problem with the installtion
    can anyone teach me how
    thanks

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  3. #2
    Moderator aussieinstlouis's Avatar
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    I have an autometer one hooked up to the rear O2 sensor. It is a very easy install, but if you have the MIL eliminator kit on the rear O2 sensor - you will be getting garbage.

    You simply give the gauge power and splice the signal line to the rear O2 sensor signal at the ECU - check ravensblade impreza for the pinouts.

    Cheers,

    Andrew

  4. #3
    Registered User chobits's Avatar
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    the ravensblade-impreza is not for the '02
    i'm also wondering, what is this "B17" that people refer to?
    thanks
    you should remember guys that i don't speak english well.
    please forgive me and ask me which part you don't understand, and i will try to explain it using my own language.

  5. #4
    Moderator aussieinstlouis's Avatar
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    I beg to differ -
    head back to this page and spend an extra second to scroll to the bottom - USDM 02 WRX wiring pinouts!!!
    http://www.ravensblade-impreza.com/index1.html

    the B17 is the pinout that you need for the rear O2 sensor wire signal (the one you tap for an a/f gauge)

  6. #5
    Registered User PlatinumWRX's Avatar
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    Aussie,

    OOC, Why did you tap the rear O2 instead of the front?

    -Jim

  7. #6
    Moderator aussieinstlouis's Avatar
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    Because most a/f gauges are calibrated for the narrowband 0-1V output (like the autometer one I have) they are not suitable for tuning, but are a good health check. I think the $300 Greddy A/F gauge can be calibrated for WB O2 sensors.

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