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Thread: Transmission Temperature ECU Input

  1. #31
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    Quote Originally Posted by Sponge View Post
    Danny, I tried for the very first time to read the transmission temperature but it stayed at 100.
    The wiring is OK, values as per your topic (I have a 1-wire transmission temperature sensor from Auto Meter).
    I'm also having the same issue with the VSS sensor, I also followed your topic, but it does not give me any value.
    You'll have to show me pictures of how you configured this Input. It works very well, so you must have done something wrong.

    Recap:
    Correct data entry for the Auto Meter #2259 Input:
    1) Create the "Thermistor" Input; name & enable it.
    2) Configure as "Custom Therm", Units "F" & Format "1".
    3) Adjust the displayed gauge Min & Max values 100F-340F.
    4) At top of Calibration Table, enter temperature scale 340F-100F (from left to right).
    5) At bottom of Calibration Table, enter Sensor Resistance-Ohms 20Ω-1123Ω (from left to right).
    6) Then "Pin Map" the new Input to an available ECU connector input pin.
    That's it. The sensor is inexpensive, compact and self grounding, so it's an easy one wire connection.
    May God's grace bless you in the Lord Jesus Christ.
    '92 Ford Mustang GT: 385" SBF, Dart SHP 8.2 block, TFS TW 11R 205 heads, 11.8:1 comp, TFS R-Series intake, Dominator MPFI & DIS, 36-1 crank trigger/1x cam sync, 160A 3G alternator, Optima Red battery, A/C, 100HP progressive dry direct-port NOS, Spal dual 12" fans/3-core Frostbite aluminum radiator, Pypes dual 2.5" exhaust/off-road X-pipe/shorty headers, S&W subframe connectors, LenTech Strip Terminator wide-ratio AOD/2800 RPM converter, M4602G aluminum driveshaft, FRPP 3.31 gears, Cobra Trac-Lok differential, Moser 31 spline axles, '04 Cobra 4-disc brakes, '93 Cobra booster & M/C, 5-lug Bullitt wheels & 245/45R17 tires.

  2. #32

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    Here you are:

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  3. #33
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    Quote Originally Posted by Sponge View Post
    Here you are:
    The Auto Meter 2259 temperature sensor values are not linear. Your temperature & Ohms values are not the same as what's in post #1.
    Also, on the Thermistor screen, the "Sensor Min" should be 100F, not zero. Are you using the Auto Meter 5291 VSS sensor?
    May God's grace bless you in the Lord Jesus Christ.
    '92 Ford Mustang GT: 385" SBF, Dart SHP 8.2 block, TFS TW 11R 205 heads, 11.8:1 comp, TFS R-Series intake, Dominator MPFI & DIS, 36-1 crank trigger/1x cam sync, 160A 3G alternator, Optima Red battery, A/C, 100HP progressive dry direct-port NOS, Spal dual 12" fans/3-core Frostbite aluminum radiator, Pypes dual 2.5" exhaust/off-road X-pipe/shorty headers, S&W subframe connectors, LenTech Strip Terminator wide-ratio AOD/2800 RPM converter, M4602G aluminum driveshaft, FRPP 3.31 gears, Cobra Trac-Lok differential, Moser 31 spline axles, '04 Cobra 4-disc brakes, '93 Cobra booster & M/C, 5-lug Bullitt wheels & 245/45R17 tires.

  4. #34

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    Good catch for the Sensor Minimum.
    Then I'm confused for the values.

    On the post #1, if I'm correct you said:
    100F = 1123Ω 102Ω So instead of 1123, should I put 102 and the same for the rest?
    120F = 708Ω 59Ω
    140F = 460Ω 35Ω
    150F = 374Ω 27Ω
    170F = 253Ω 17Ω
    190F = 175Ω 10Ω
    200F = 149Ω 8Ω (I mathematically averaged this in, for 16 data points.)
    210F = 123Ω 7Ω
    212F = 119Ω 6Ω
    220F = 105Ω 5Ω
    230F = 89Ω 5Ω
    250F = 65Ω 4Ω
    280F = 42Ω 3Ω
    300F = 32Ω 2Ω
    320F = 25Ω 2Ω
    340F = 20Ω 1Ω

    I'm using the Auto Meter 5292 (Ford version):
    http://www.autometer.com/hall-effect...d-plug-in.html

  5. #35
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    Chicago IL
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    You should be able to just enter all those values as is.

    When entering values, the only catch is the Ohms value must go from left to right.
    Lowest Ohm value on the left, to highest Ohm value on the right.
    So your temperature values will be 340 on the left, and 100 on the right.
    -Scott
    Don't forget to check out progress on my Race Car:
    Project Blasphemy - 8.07 @ 171
    Low 8 Second Street Car

  6. #36
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    Quote Originally Posted by Sponge View Post
    On the post #1, if I'm correct you said:
    100F = 1123Ω 102Ω So instead of 1123, should I put 102 and the same for the rest?
    No, not the 102Ω; that's just the sensor tolerance. The Ohms values listed, don't match what you pictured in post #32.
    In the EFI software, you used the "Fill Row Values" function (it's not linear), instead of filling in each individual cell value.
    May God's grace bless you in the Lord Jesus Christ.
    '92 Ford Mustang GT: 385" SBF, Dart SHP 8.2 block, TFS TW 11R 205 heads, 11.8:1 comp, TFS R-Series intake, Dominator MPFI & DIS, 36-1 crank trigger/1x cam sync, 160A 3G alternator, Optima Red battery, A/C, 100HP progressive dry direct-port NOS, Spal dual 12" fans/3-core Frostbite aluminum radiator, Pypes dual 2.5" exhaust/off-road X-pipe/shorty headers, S&W subframe connectors, LenTech Strip Terminator wide-ratio AOD/2800 RPM converter, M4602G aluminum driveshaft, FRPP 3.31 gears, Cobra Trac-Lok differential, Moser 31 spline axles, '04 Cobra 4-disc brakes, '93 Cobra booster & M/C, 5-lug Bullitt wheels & 245/45R17 tires.

  7. #37

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    Voila, it is corrected. Any wrong inputs for the VSS sensor? I'll test the wiring next week.

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  8. #38
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    Quote Originally Posted by Sponge View Post
    Any wrong inputs for the VSS sensor?
    I don't see anything programmed wrong. Check your wiring.
    May God's grace bless you in the Lord Jesus Christ.
    '92 Ford Mustang GT: 385" SBF, Dart SHP 8.2 block, TFS TW 11R 205 heads, 11.8:1 comp, TFS R-Series intake, Dominator MPFI & DIS, 36-1 crank trigger/1x cam sync, 160A 3G alternator, Optima Red battery, A/C, 100HP progressive dry direct-port NOS, Spal dual 12" fans/3-core Frostbite aluminum radiator, Pypes dual 2.5" exhaust/off-road X-pipe/shorty headers, S&W subframe connectors, LenTech Strip Terminator wide-ratio AOD/2800 RPM converter, M4602G aluminum driveshaft, FRPP 3.31 gears, Cobra Trac-Lok differential, Moser 31 spline axles, '04 Cobra 4-disc brakes, '93 Cobra booster & M/C, 5-lug Bullitt wheels & 245/45R17 tires.

  9. #39

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    We have a blower intake for a 360 with a 1/4" threaded bung, and will not accept the Holley sensor due to its 3/8" thread size. So I purchased the Auto Meter 2252 as mentioned earlier in the blog. I'm unsure how to wire this sensor into the existing Holley harness. I'm desiring to replace the stock Holley sensor with the Auto Meter 2252. Auto Meter indicates that the sensor has a 5 volt reference pin and a signal pin and then it grounds through the metal threads.

    How do I wire it correctly into the harness? Thank you so much for your assistance.

  10. #40
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    Quote Originally Posted by darrenkizer View Post
    We have a blower intake for a 360 with a 1/4" threaded bung, and will not accept the Holley sensor due to its 3/8" thread size. So I purchased the Auto Meter 2252 as mentioned earlier in the blog.
    What is this Auto Meter 2252 temperature sensor for? EFI coolant temperature or something else?

    Auto Meter indicates that the sensor has a 5 volt reference pin and a signal pin and then it grounds through the metal threads.
    That's a 0-5V type sensor (+5V, Ground & Signal), not a thermistor (Ohms & Ground).
    The EFI system coolant temperature sensor is hard-coded as a thermistor type sensor.

    How do I wire it correctly into the harness?
    http://forums.holley.com/showthread....3598#post53598 (Wiring Additional Sensors - HP & Dominator ECUs)
    May God's grace bless you in the Lord Jesus Christ.
    '92 Ford Mustang GT: 385" SBF, Dart SHP 8.2 block, TFS TW 11R 205 heads, 11.8:1 comp, TFS R-Series intake, Dominator MPFI & DIS, 36-1 crank trigger/1x cam sync, 160A 3G alternator, Optima Red battery, A/C, 100HP progressive dry direct-port NOS, Spal dual 12" fans/3-core Frostbite aluminum radiator, Pypes dual 2.5" exhaust/off-road X-pipe/shorty headers, S&W subframe connectors, LenTech Strip Terminator wide-ratio AOD/2800 RPM converter, M4602G aluminum driveshaft, FRPP 3.31 gears, Cobra Trac-Lok differential, Moser 31 spline axles, '04 Cobra 4-disc brakes, '93 Cobra booster & M/C, 5-lug Bullitt wheels & 245/45R17 tires.

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