E36 328 Air/Fuel Meter?
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Thread: Air/Fuel Meter?

  1. #1
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    Air/Fuel Meter?

    Has anyone here fitted an air/fuel ratio meter?

    If you have, do you know where the wires go

    Same for a vacuum meter to.

  2. #2
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    Yellow wire on O2 sensor (Or pin 75 on ECU).

    For the vacuum, just T into one of the existing vacuum pipes already there.

    HTH

  3. #3
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    cheers

    has anyone experience with making the current narrow band sensor, wide band with a convertor?

  4. #4
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    Quote Originally Posted by Ferret View Post
    Yellow wire on O2 sensor (Or pin 75 on ECU).

    For the vacuum, just T into one of the existing vacuum pipes already there.

    HTH
    where in the engine is this yellow wire on the o2 sensor

  5. #5
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    rather than splice the lambda can i splice onto pin 75? and get the same result

    @Ferret

  6. #6
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    Quote Originally Posted by stickle View Post
    rather than splice the lambda can i splice onto pin 75? and get the same result

    @Ferret
    Yes. Pin 75 goes to the yellow wire on the lambda.

  7. The Following User Says Thank You to Ferret For This Useful Post:

    stickle (17-08-2012)

  8. #7
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    cheers, will give it ago tomorrow hopefully

  9. #8
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    just connected to pin 75, car was on idle and the needle dont move on gauge.

    is this correct?

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    What did you connect it to?

  11. #10
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    Pin 75 on the ecu
    I was testing from under the bonnet so couldn't drive the car

    Sent from my MB860 using Tapatalk 2

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