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3.4 tachometer false reading

Discussion in '1st Gen. Tacomas (1995-2004)' started by pnwtaco, Oct 28, 2014.

  1. Oct 28, 2014 at 1:29 AM
    #1
    pnwtaco

    pnwtaco [OP] Well-Known Member

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    Taylor
    Bellingham, WA
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    95 3.4 manual 4x4
    Bilstein 5100's, Pro Comp alloy rims with 33" Duratracs
    Hey everyone. I have had this problem since the day i purchased my tacoma. The tach reads about 200 RPM's high. The previous owner told me it needed a new crank positioning sensor. I have tried researching this all over the place but with little avail :confused: can some one chime in and help me out with this? is the CPS what transmits the engine revolutions to a signal to the tach? any input is appreciated...
     
  2. Oct 28, 2014 at 5:25 AM
    #2
    KdF

    KdF Old Rednek Type

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  3. Oct 28, 2014 at 5:40 AM
    #3
    BamaToy1997

    BamaToy1997 Wheel Bearing Master

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    If your tach is consistently 200RPM off, I doubt the crank position sensor is the culprit. Usually a bad CPS will give erratic signal, or a jumpy needle. If you have access to a code reader that has data, I would suggest looking at the data and comparing it to the gauge. It could be possible that your gauge is off. Has the cluster had anything done to it? (white face cover, etc) that someone may have removed the needle and not got it back on in the right spot?
     
  4. Oct 28, 2014 at 2:51 PM
    #4
    pnwtaco

    pnwtaco [OP] Well-Known Member

    Joined:
    Feb 24, 2014
    Member:
    #123904
    Messages:
    57
    Gender:
    Male
    First Name:
    Taylor
    Bellingham, WA
    Vehicle:
    95 3.4 manual 4x4
    Bilstein 5100's, Pro Comp alloy rims with 33" Duratracs
    I don't think that it has been removed, I do not see any evidence that would lead me to believe it was removed. It still has the stock black cluster. But it is possible... It is just strange because it seems like everything is operating as it should, it just reads high. But i will try and get it on a code reader with data. thanks.
     

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