# Audi TT BUB VR6 - Cruise control, AC Idle up, and fuel pressure settings

**URL:** <https://community.ecumaster.com/t/audi-tt-bub-vr6-cruise-control-ac-idle-up-and-fuel-pressure-settings/3168>\
**Category:** GENERAL\
**Created:** [February 9, 2025, 11:45am UTC](https://community.ecumaster.com/t/audi-tt-bub-vr6-cruise-control-ac-idle-up-and-fuel-pressure-settings/3168 "2025-02-09T11:45:23Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![VRS34](https://avatars.discourse-cdn.com/v4/letter/v/f9ae1b/32.png) [@VRS34](https://community.ecumaster.com/u/VRS34)\
**Post date:** [February 9, 2025, 11:45am UTC](https://community.ecumaster.com/t/audi-tt-bub-vr6-cruise-control-ac-idle-up-and-fuel-pressure-settings/3168/1 "2025-02-09T11:45:23Z")

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Easy stuff first. The Audi TT VR6 BUB uses a rear mounted FPR with a static fuel pressure of 4 bar. I’d rather not have to run a return line and switch to a rising rate fuel pressure reg.

Running V3’s latest firmware.

What can I do with Fuel Pressure Regulator in Fueling-General? There isnt an option for a static fuel pressure/dead head fuel system.

Next, cruise control setup for the Set/Cancel. Resume and speed up and down. Is there a wiring diagram for how the EMU Black BUB that will tell me what inputs to use for these?

Last question… How do I up the throttle opening with the DBW throttle when AC is turned on?

Thanks,  
Ian

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**Author:** ![FloorItGarage](https://dub1.discourse-cdn.com/flex013/user_avatar/community.ecumaster.com/flooritgarage/32/61_2.png) [@FloorItGarage](https://community.ecumaster.com/u/FloorItGarage)\
**Post date:** [February 10, 2025, 8:09am UTC](https://community.ecumaster.com/t/audi-tt-bub-vr6-cruise-control-ac-idle-up-and-fuel-pressure-settings/3168/2 "2025-02-10T08:09:52Z")

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Baro referenced = atmosphere referenced, a deadhead system with no MAP reference.  
Enter 400 kpa as your base pressure

Idle parameters = AC idle increase Value  
This adds rpm to the idle rpm target when AC is active.

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<div class="post-metadata">

**Author:** ![VRS34](https://avatars.discourse-cdn.com/v4/letter/v/f9ae1b/32.png) [@VRS34](https://community.ecumaster.com/u/VRS34)\
**Post date:** [February 10, 2025, 11:08am UTC](https://community.ecumaster.com/t/audi-tt-bub-vr6-cruise-control-ac-idle-up-and-fuel-pressure-settings/3168/3 "2025-02-10T11:08:10Z")

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Thanks that makes sense. So many settings in these ecu’s. They need a search box at the top like the Haltech NSP software has.

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<div class="post-metadata">

**Author:** ![FloorItGarage](https://dub1.discourse-cdn.com/flex013/user_avatar/community.ecumaster.com/flooritgarage/32/61_2.png) [@FloorItGarage](https://community.ecumaster.com/u/FloorItGarage)\
**Post date:** [February 10, 2025, 9:25pm UTC](https://community.ecumaster.com/t/audi-tt-bub-vr6-cruise-control-ac-idle-up-and-fuel-pressure-settings/3168/4 "2025-02-10T21:25:47Z")

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It was added in V3 firmware and it’s in pro, so they agreed lol