# Incorrect Temperature Readings from Bosch Oil Pressure/Temp Combo Sensor (0261230340) on EMU Black

**URL:** https://community.ecumaster.com/t/incorrect-temperature-readings-from-bosch-oil-pressure-temp-combo-sensor-0261230340-on-emu-black/3641
**Category:** GENERAL
**Tags:** how-to
**Created:** [May 5, 2025, 12:16pm UTC](https://community.ecumaster.com/t/incorrect-temperature-readings-from-bosch-oil-pressure-temp-combo-sensor-0261230340-on-emu-black/3641 "2025-05-05T12:16:26Z")
**Posts on this page:** 5
**Page:** 1

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### Author: ![TFSI\_a3](https://avatars.discourse-cdn.com/v4/letter/t/eada6e/32.png) [@TFSI\_a3](https://community.ecumaster.com/u/TFSI_a3)
#### Post date: [May 5, 2025, 12:16pm UTC](https://community.ecumaster.com/t/incorrect-temperature-readings-from-bosch-oil-pressure-temp-combo-sensor-0261230340-on-emu-black/3641/1 "2025-05-05T12:16:26Z")

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Hi everyone,

I’m using a Bosch oil pressure and temperature combo sensor (part number 0261230340) with my ECUMaster EMU Black.

The oil pressure sensor is connected to Analog input 5 and configured using the Sensor Wizard – it works perfectly and matches the readings from an analog gauge.

The temperature sensor is connected to Analog input 4, but I’m getting either no readings or completely incorrect values when using the default settings provided by the Sensor Wizard.

Has anyone successfully used this sensor on the EMU Black and could share the correct calibration parameters or voltage curve for the temperature input?

Any help would be greatly appreciated!

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### Author: ![ANDREI](https://avatars.discourse-cdn.com/v4/letter/a/9fc29f/32.png) [@ANDREI](https://community.ecumaster.com/u/ANDREI)
#### Post date: [May 5, 2025, 1:23pm UTC](https://community.ecumaster.com/t/incorrect-temperature-readings-from-bosch-oil-pressure-temp-combo-sensor-0261230340-on-emu-black/3641/2 "2025-05-05T13:23:26Z")

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Hello , I use two sensors that are connected via can switch V3.  
everything works fine.

 ![image](https://europe1.discourse-cdn.com/flex013/uploads/ecumaster/original/2X/3/31c288e115f19fe9d57ee753f13fa6d7112c704c.png)

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### Author: ![Greg](https://avatars.discourse-cdn.com/v4/letter/g/71c47a/32.png) [@Greg](https://community.ecumaster.com/u/Greg)
#### Post date: [May 5, 2025, 6:52pm UTC](https://community.ecumaster.com/t/incorrect-temperature-readings-from-bosch-oil-pressure-temp-combo-sensor-0261230340-on-emu-black/3641/3 "2025-05-05T18:52:53Z")

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Make sure correct pullup is selected on wizard

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<div class="post-metadata">

### Author: ![TFSI\_a3](https://avatars.discourse-cdn.com/v4/letter/t/eada6e/32.png) [@TFSI\_a3](https://community.ecumaster.com/u/TFSI_a3)
#### Post date: [May 5, 2025, 7:50pm UTC](https://community.ecumaster.com/t/incorrect-temperature-readings-from-bosch-oil-pressure-temp-combo-sensor-0261230340-on-emu-black/3641/4 "2025-05-05T19:50:39Z")

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The Pullup in the wizard is 2200Ohm @Greg

 ![Bild_2025-05-05_215233042](https://europe1.discourse-cdn.com/flex013/uploads/ecumaster/original/2X/2/24cfe19d9a7edd92f520de532e39ad7d13dad9eb.png)

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### Author: ![baxtercrafter](https://dub1.discourse-cdn.com/flex013/user_avatar/community.ecumaster.com/baxtercrafter/32/2130_2.png) [@baxtercrafter](https://community.ecumaster.com/u/baxtercrafter)
#### Post date: [May 5, 2025, 9:43pm UTC](https://community.ecumaster.com/t/incorrect-temperature-readings-from-bosch-oil-pressure-temp-combo-sensor-0261230340-on-emu-black/3641/5 "2025-05-05T21:43:33Z")

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> **[Ecumaster](https://www.ecumaster.com/sensors/)**
>
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Download the manual for the bosch dual sensor and follow the instructions,  
with 330ohm pullup accuraricy is best in the temp range where you need it , also dont forget to change pullup value to 330 ohm in the wizard ✌🏾