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  • Throttle Position Sensor

    The #3590 is no longer available.
    You will need to do some modifications to the following part numbers ( their all the same part ):
    TH408
    TPS6045
    TPSH408
    026 998 3851
    14985
    TPS4155

    The above TPS's don't have the elongated mounting holes to do any adjustments. Punch out the brass mounting supports on the new TPS, and elongate the holes with a Dremel type tool.
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    In my neighborhood, if you open your hood to check your oil, and the vehicle still runs after you close it.......Then your labeled the Neighborhood Mechanic.
    https://forums.edelbrock.com/filedat...?photoid=42773

  • #2
    I did a bunch of testing on some TPS's. So I'm going to share the information I learned during the testing.

    Part#________Height of drive tab______Rotation Direction_____Notes
    TH27___________none__________________ linear_______________Out = 0V. In = 4.3V. If you switch the + and - : Out = 5.06V. In = 0.25V. Middle pin is Signal.
    TH40___________10mm_________________CC
    TH42___________10mm_________________C
    TH47___________10mm_________________CC
    TH51___________10mm_________________CC
    TH60____________9mm_________________C_____________ _______Black/Blue = Ground. Orange/White = +5V. Orange/Violet = Signal. 0.18V to 4.68V
    TH62___________11mm_________________C_____________ _______Black = Ground. Orange = +5V. Green = Signal. 0.51V to 4.75V
    TH149___________9mm-D_______________CC
    TH191___________10mm________________C
    TPS4155_________9mm_________________ C10 TPS.JPG

    Rotation direction is if you used a flate blade screwdriver to turn it.
    In my neighborhood, if you open your hood to check your oil, and the vehicle still runs after you close it.......Then your labeled the Neighborhood Mechanic.
    https://forums.edelbrock.com/filedat...?photoid=42773

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    • #3
      Thanks for that info! Did you see any quality differences between the TPS's listed in the #1 post? Asking because TH408 & TH4155 are $80-100 but the TPSH408 & 026 998 3851 are only about $12? Any reason not to use one of the cheaper ones?

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      • #4
        To be honest I dont like any TPS. Go to a Range Rover or any off-road forum to see why.
        I can't find any that are weather proof. There is a company making a "contact less" sensor ( the main part that wears out ). They said they "were" going to come out with replacement sensors from 1988 vehicles, and up. But they haven't came out for the gasoline engines. Only some Diesel..

        The one that Edelbrock used, and the cheap one are very nice. The GM ones are junk. They used a ABS plumbing glue, that's very, very brittle. I barely touched them with a pair of pliers, to crack them open.

        I only spent $ 100.00 on all those 10 sensors. With shipping included. From 10 different sellers.
        I would just buy 2 or 3 of the cheap ones. Just make sure not to get them wet.
        In my neighborhood, if you open your hood to check your oil, and the vehicle still runs after you close it.......Then your labeled the Neighborhood Mechanic.
        https://forums.edelbrock.com/filedat...?photoid=42773

        Comment


        • #5
          Almost forgot. I listed all the part numbers. Because some of the none American people have a hard time with are part numbers. So I just posted all of them that interchange. My gut says those particular parts are all made the same. The price difference is most likely because some manufacturers don't make that many of them. So production costs are higher.
          In my neighborhood, if you open your hood to check your oil, and the vehicle still runs after you close it.......Then your labeled the Neighborhood Mechanic.
          https://forums.edelbrock.com/filedat...?photoid=42773

          Comment


          • #6
            The off-road motorcycle people are doing up grades to this: http://www.dpaonthenet.net/article/2...l-outputs.aspx
            They basically have to be custom programmed in order to make them. Their retailing in the $150 to $200 range...that's not a bad price for the most reliable TPS I can find.
            In my neighborhood, if you open your hood to check your oil, and the vehicle still runs after you close it.......Then your labeled the Neighborhood Mechanic.
            https://forums.edelbrock.com/filedat...?photoid=42773

            Comment


            • #7
              Thanks for info!

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              • #8
                In case anyone is interested. I'm going to make a adapter that fits the TH47 onto Edelbrock carburetors.....it's just going to be plans. Not a actual product for sell.

                I'm manly making it for data logging dual carburetors.

                I'll post the plans, and pictures in the Carburetor section of the forum next month.
                In my neighborhood, if you open your hood to check your oil, and the vehicle still runs after you close it.......Then your labeled the Neighborhood Mechanic.
                https://forums.edelbrock.com/filedat...?photoid=42773

                Comment

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