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Thread: calibrating my new vdo speedo

  1. #1

    calibrating my new vdo speedo

    Wondering if anybody knows the pulse-per-mile for the fiero sensor. I just installed my new vision series 220mph vdo speedo in my 86 2.8L fiero and am about to calibrate it. Any help would be appreciated. my email blutes@storm.ca

  2. #2

    Re: calibrating my new vdo speedo

    Have a look at this link.

    http://www.vdona.com/Tech%20Support/...ationGuide.pdf

    I plan on using an ABS sensored bearing hub to run my speedometer. VDO only needs to know that number of pulses per mile/km to give it the accurate reading.

    Jim

  3. #3
    Moderator FunnyWheels's Avatar
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    Re: calibrating my new vdo speedo

    You may have to run a new wire from the sensor on the transaxle to the input on the back of the VDO to get it to function. The Fiero uses a HAL type sensor and VDO requires a pulse type.

    Dave
    If you're not confused, you're not paying attention.

  4. #4

    Re: calibrating my new vdo speedo

    Actually, it seems that depending on the way you wire it, it will work with both types of sensors. Have a look
    http://www.vdona.com/Tech%20Support/...peedometer.pdf


  5. #5
    Senior Member Mr355's Avatar
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    Re: calibrating my new vdo speedo

    For stock Fiero V6, set gauge to " electronic transmission" and program speedo to 2000 ppm.

  6. #6
    Moderator FunnyWheels's Avatar
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    Re: calibrating my new vdo speedo

    More like 2,600, but you are correct. KMH are 62% of MPH. 4,000 pulses / 62% = 2,480 or what ever is closes. It sounds like he is on the right track. If you can not set it for that amount then a resistor will need to be placed in the line to accomplish the same thing. Then the tire size comes into play after that.
    If you're not confused, you're not paying attention.

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