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TPMS vs Manual Air Pressure Gauge

Discussion in '3rd Gen. Tacomas (2016+)' started by dusman, Jan 10, 2017.

  1. Jan 10, 2017 at 8:02 AM
    #1
    dusman

    dusman [OP] Well-Known Member

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    anyone compared what their TPMS display shows for pressure vs a standard tire guage? My TPMS display seems to always be about 2psi higher that what my guages show
     
  2. Jan 10, 2017 at 9:25 AM
    #2
    mict450

    mict450 got heel toe?

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    I trust my manual gauge. At this point in time, the TPMS is dead nuts in agreement with tire gauge. But I still check weekly with the manual.
     
    hiPSI likes this.
  3. Jan 10, 2017 at 10:16 AM
    #3
    pjensen641

    pjensen641 Well-Known Member

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    Most manual gauges are Chinese garbage. Its difficult to find one of trustworthy quality. I'll trust my TPMS readings. I've yet to devise a scheme to use for calibration other than testing many manual gauges and throwing out the outliers.
     
  4. Jan 10, 2017 at 10:24 AM
    #4
    PJnc284

    PJnc284 Well-Known Member

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    shakerhood likes this.
  5. Jan 10, 2017 at 11:02 AM
    #5
    Garyji

    Garyji Well-Known Member

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    What TPMS?? I haven't been able to convert "----" into PSI.

    G. :D
     
  6. Jan 10, 2017 at 11:05 AM
    #6
    erok81

    erok81 Well-Known Member

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    Mine is the exact opposite. Gauge reads 3-4 psi higher that dash display.

    BUT...I am 99% sure it's my cheap gauge. I never double checked with my good gauge.
     
  7. Jan 10, 2017 at 11:46 AM
    #7
    dusman

    dusman [OP] Well-Known Member

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    It's just Morse code....
     
    Garyji likes this.
  8. Jan 10, 2017 at 12:36 PM
    #8
    LarsonFan

    LarsonFan Chip Ganassi Racing

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  9. Jan 10, 2017 at 2:45 PM
    #9
    dusman

    dusman [OP] Well-Known Member

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    Thanks I have 1 quality older gauge built in the USA and it is within 1-2psi , you and others have restored confidence that the tpms is likely more accurate. You just never know these days if you can trust electronics without a mechanical way of verification. I like to run my tires at 32-33 vs 29-30
     
    LarsonFan likes this.
  10. Jan 10, 2017 at 2:56 PM
    #10
    JoeyDel

    JoeyDel Well-Known Member

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  11. Jan 10, 2017 at 3:51 PM
    #11
    mict450

    mict450 got heel toe?

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    Agree with this statement re: Chicom rubbish. Thankfully, have a truck tire gauge made in the good ol' US of A, and older than many of the members here.
     
    shakerhood likes this.
  12. Jan 10, 2017 at 4:22 PM
    #12
    OhioTaco68

    OhioTaco68 Well-Known Member

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  13. Nov 26, 2017 at 4:55 PM
    #13
    jsey21

    jsey21 Well-Known Member

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    I know this is an older thread, but is the TPMS system still accurate after you re-initialize the system when you rotate the tires?

    I guess what I am asking is that is the system reading the actual pressure or am I initializing the pressure in the tire it to where it should be (the door panel pressure)?

    I'm wondering if I am creating an offset when I re-initialize or if the sensor is purely reading tire pressure. If it's purely reading pressure, I need to throw out my manual pressure gauges as they are really off.
     
  14. Nov 26, 2017 at 5:39 PM
    #14
    Frankenstuff

    Frankenstuff Anti bling activist

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    I have a arb digital inflator/deflator . My tpms is dead nuts with the arb gauge.
     

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