# Trouble with bosch dbw not working properly

**URL:** <https://community.ecumaster.com/t/trouble-with-bosch-dbw-not-working-properly/3907>\
**Category:** EMU BLACK / CLASSIC\
**Created:** [June 20, 2025, 4:10pm UTC](https://community.ecumaster.com/t/trouble-with-bosch-dbw-not-working-properly/3907 "2025-06-20T16:10:13Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![PRT\_RACER](https://avatars.discourse-cdn.com/v4/letter/p/f14d63/32.png) [@PRT\_RACER](https://community.ecumaster.com/u/PRT_RACER)\
**Post date:** [June 20, 2025, 4:10pm UTC](https://community.ecumaster.com/t/trouble-with-bosch-dbw-not-working-properly/3907/1 "2025-06-20T16:10:13Z")

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Hello everyone  
i am working with ecu master black version and i am currently using the ecu at yamaha’s fazer 600 engine.  
The thing is that i have also a bosch motosport dbw and i hace connected the dbw, with both a 3 pin and 4 pin pps from denso (its temporary and at the 4 pin connection the difference was the i put an analog input at second pps which had no difference and it was worse) and the problem that i am facing is that i have enabled my dbw and then when i am calibrating it finishes well and then when i am on 3% pps, the throttle plate goes to 100% immediatly. So my question is what can i do in order to fix that issue and my throttle works accordingly with my pps (pps works fine and the throttle is brand new). I will upload some screenshots such as the datasheet of the throttle in case i have messed up with wiring (like one cable or something). Thanks for your time team.  
PS CALIBRATION DOESNT SOLVE THE ISSUE i have done multiple and still nothing  
and the current connection that i have  
DBW BOSCH 0280.750.148  
PIN 1 G10  
PIN2 B38  
PIN 3 B26  
PIN4 G2  
PIN 5 B4  
PIN 6 B31

 ![image](https://europe1.discourse-cdn.com/flex013/uploads/ecumaster/original/2X/8/87b6c8ffe98efd6de917bb986affdba451a2f3aa.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:** [June 20, 2025, 5:17pm UTC](https://community.ecumaster.com/t/trouble-with-bosch-dbw-not-working-properly/3907/2 "2025-06-20T17:17:47Z")

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You have used falling input not rising.  
Swap in software anolg 1 and analog 2

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<div class="post-metadata">

**Author:** ![PRT\_RACER](https://avatars.discourse-cdn.com/v4/letter/p/f14d63/32.png) [@PRT\_RACER](https://community.ecumaster.com/u/PRT_RACER)\
**Post date:** [June 20, 2025, 11:52pm UTC](https://community.ecumaster.com/t/trouble-with-bosch-dbw-not-working-properly/3907/3 "2025-06-20T23:52:53Z")

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i have made the switch it didnt fix the problem should i try something extra with that change in order to be applied?

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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:** [June 21, 2025, 7:01am UTC](https://community.ecumaster.com/t/trouble-with-bosch-dbw-not-working-properly/3907/4 "2025-06-21T07:01:17Z")

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Check what is your dbw target .  
Makensure main position signal is rising.  
Ecu assume smaller voltage on shut throttle ..