# Bosch Temp/Pressure Sensor how to setup

**URL:** https://community.ecumaster.com/t/bosch-temp-pressure-sensor-how-to-setup/2408
**Category:** EMU BLACK / CLASSIC
**Tags:** how-to
**Created:** [September 28, 2024, 3:04pm UTC](https://community.ecumaster.com/t/bosch-temp-pressure-sensor-how-to-setup/2408 "2024-09-28T15:04:30Z")
**Posts on this page:** 4
**Page:** 1

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### Author: ![Matthias\_avp](https://dub1.discourse-cdn.com/flex013/user_avatar/community.ecumaster.com/matthias_avp/32/5661_2.png) [@Matthias\_avp](https://community.ecumaster.com/u/Matthias_avp)
#### Post date: [September 28, 2024, 3:04pm UTC](https://community.ecumaster.com/t/bosch-temp-pressure-sensor-how-to-setup/2408/1 "2024-09-28T15:04:30Z")

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Hi,

i have Bosch 0261230482  
i also have a 330 ohm pullup  
when i write the Numbers in the wizard, it says at 4 volts 0 degrees  
but i have at 4,2 volt 30 degrees celcius ( measured with another device) ?

How should i setup the Sensor in Sensor Setup Calibration in Black

thank you

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<div class="post-metadata">

### Author: ![derUltraTT](https://avatars.discourse-cdn.com/v4/letter/d/ba8739/32.png) [@derUltraTT](https://community.ecumaster.com/u/derUltraTT)
#### Post date: [September 28, 2024, 7:34pm UTC](https://community.ecumaster.com/t/bosch-temp-pressure-sensor-how-to-setup/2408/2 "2024-09-28T19:34:36Z")

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The voltage reading is depending on the pullup resistor used. Do u know the pullup of ur other device?  
If not then a comparison makes no sense and u better should just trust the wizard.

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<div class="post-metadata">

### Author: ![Matthias\_avp](https://dub1.discourse-cdn.com/flex013/user_avatar/community.ecumaster.com/matthias_avp/32/5661_2.png) [@Matthias\_avp](https://community.ecumaster.com/u/Matthias_avp)
#### Post date: [September 29, 2024, 10:55am UTC](https://community.ecumaster.com/t/bosch-temp-pressure-sensor-how-to-setup/2408/3 "2024-09-29T10:55:59Z")

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Mlynek wrote, i need 330Ohm pullup for this sensor.  
but when you ad 330 ohm you also have to change setup for  
ecu master oil sensor. there is a extra sheet with it delivered.  
there must be a way to calculate this (for me…)  
in setup wizard it says 2200 ohm in Black, right?

Any ideas?

thank you

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<div class="post-metadata">

### Author: ![derUltraTT](https://avatars.discourse-cdn.com/v4/letter/d/ba8739/32.png) [@derUltraTT](https://community.ecumaster.com/u/derUltraTT)
#### Post date: [September 29, 2024, 11:04am UTC](https://community.ecumaster.com/t/bosch-temp-pressure-sensor-how-to-setup/2408/4 "2024-09-29T11:04:37Z")

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If u have the 330 pullup in ur harness u need to set 330 Ohm in the wizard. Also u need to deactivate the pullup on the sensor input and use 1M pulldown. Supply then must come from 5V output. Then everything the wizard outputs should be correct.