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Throttle position sensors keep failing

Discussion in '1st Gen. Tacomas (1995-2004)' started by Milkman670, Apr 5, 2024.

  1. Apr 5, 2024 at 12:38 PM
    #1
    Milkman670

    Milkman670 [OP] New Member

    Joined:
    Apr 5, 2024
    Member:
    #447325
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    Gender:
    Male
    Vehicle:
    1999 tacoma 3.4L ext 4x4 base
    Just joined to try to diagnose the issue. Have searched and founds lots on tps but none relate. My issue started with a hesitation/stutter/jerk while at a steady speed, neither on or off throttle, just hovering on peddle. did some research and came up with TPS, has also thrown a cel code for tps, checked with meter and it was defiantly faulty after only 570,000km. Have replaced twice with different brands, neither original Toyota and runs great for awhile but each has failed and repeats the stutter after 2 or 3 months. Still drivable but looses fuel mileage. Starting to lean to ecm?? Any ideas? TIA
     
  2. Apr 5, 2024 at 12:56 PM
    #2
    Papa Surf

    Papa Surf Member

    Joined:
    Sep 29, 2021
    Member:
    #378419
    Messages:
    9
    Gender:
    Male
    Galveston, TX
    Vehicle:
    1999 3.4L Prerunner. 2nd Owner since 2001.
    Keep'em Stock!
    I've had a similar experience with regards to the "hesitaion/stutter/jerk" using non-OEM TPS's. Finally went back to OEM and no issues since. Below are from my maint. log. Current mileage is 400,600 miles.

    1/8/2015 TPS Sensor 288640mi
    8/31/2015 TPS Sensor 296814mi
    9/25/2017 TPS OEM Sensor 320200mi
     
    ridefreak likes this.
  3. Apr 5, 2024 at 1:11 PM
    #3
    Milkman670

    Milkman670 [OP] New Member

    Joined:
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    Male
    Vehicle:
    1999 tacoma 3.4L ext 4x4 base
    Good to know, just looked up, Genuine $162 vs knock off $26 yikes
     
  4. Apr 5, 2024 at 1:31 PM
    #4
    Red_03Taco

    Red_03Taco Well-Known Member

    Joined:
    Nov 2, 2021
    Member:
    #381170
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    First Name:
    Jerad
    Vehicle:
    2003 Tacoma Xtra Cab 4WD
    Genuine = $162, good for 340,000 miles.

    Knockoff = $26, good ~18,000 miles.

    One of these is much cheaper, and it ain't the knockoff one lol
     
    Nessal likes this.
  5. Apr 5, 2024 at 1:55 PM
    #5
    KdF

    KdF Old Rednek Type

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    East-ByGod-TEXAS!
    Vehicle:
    2000 Prerunner SR5 TRD 2WD
  6. Apr 5, 2024 at 10:17 PM
    #6
    Milkman670

    Milkman670 [OP] New Member

    Joined:
    Apr 5, 2024
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    3
    Gender:
    Male
    Vehicle:
    1999 tacoma 3.4L ext 4x4 base

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