67 lines
2.7 KiB
Markdown
67 lines
2.7 KiB
Markdown
# Hellen 121 VAG
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Hellen Plug&Play for ME7 VAG vehicles
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[Download release firmware](https://github.com/rusefi/rusefi/releases/latest/download/rusefi_bundle_hellen121vag.zip)
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[Snapshot firmware bundle](https://rusefi.com/build_server/rusefi_bundle_hellen121vag.zip)
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[Pinout](https://rusefi.com/docs/pinouts/hellen/hellen121vag/)
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[EBAY](https://www.ebay.com/itm/334048095704)
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[Schematics rev a](https://github.com/rusefi/hellen121vag/raw/main/boards/hellen121vag-a/board/hellen121vag-a-schematic.pdf)
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[Schematics rev b](https://github.com/rusefi/hellen121vag/raw/main/boards/hellen121vag-b/board/hellen121vag-b-schematic.pdf)
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[iBom rev b](https://rusefi.com/docs/ibom/hellen121vag-b-ibom.html)
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[KiCAD source files](https://github.com/rusefi/hellen121vag)
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Status: early phases of testing!
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## Hardware features
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* Electronic Throttle Body
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* knock detection module with headphone jack
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* build-in WBO - **WARNING 4.2 software not ready while we believe that hardware is universal** (footprint, stm32f042 not in stock at JLC)
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* Baro sensor LPS25HB (footprint, not populated)
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## Vehicle Specific Jumpers
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Main Relay option **Never have both R2 and R3 jumpers populated!**
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Voltage Input option **Never have both R8 and R9 jumpers populated!**
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Raw +12 option **Never have both F1 and F2 jumpers populated!**
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| Vehicle | R2 | R3 | R8 | R9 | F1 | F2 |
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| --- | --- | --- | --- | --- | --- | --- |
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| 2000 Early Audi A4 1.8T (ME7.1, NBO2, NO VVT, DBW) | ✔ | ✘ | ✘ | ✔ | ✘ | ✔ |
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| 2001 Audi A4 1.8T (ME7.5, WBO2, VVT, DBW) | ✔ | ✘ | ✘ | ✔ | ✘ | ✔ |
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| 2002 Audi Allroad 2.7t apb | ✘ | ✘ | ✘ | ✔ | ✔ | ✘|
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| 2006 Jetta 2.5 BGQ | ✘ | ✔ | ✘ | ✔ | ✔ | ✘ |
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| 2003 Audi A6 3.0 | ✘ | ✔ | ✘ | ✔ | ? | ? |
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| 2003 Audi A6 4.2 | ✘ | ✔ | ✔ | ✘ | ✔ | ✘ |
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| 2001 VR6 12V AFP | ✘ | ✘ | ✘ | ✔ | ✔ | ✘ |
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| 2002 VR6 24V BDF | ✘ | ✔ | ✘ | ✔ | ✔ | ✘|
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| 2004 Cayenne 3.2 | ✘ | ✔ | ✔ | ✘ | ✔ | ✘|
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| Other model | ? | ? | ? | ? | ? | ? |
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[R2-R3-R8-R9 JUMPER](https://drive.google.com/file/d/1r4os5Ft1mQFYYcKLPqTyI-RTlIX4GPmx/view?usp=sharing)
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[Connector Pinout Spreadsheet, with links to wiring drawings](https://docs.google.com/spreadsheets/d/1H0cZPAJFbpprgSu1Y8BiAYzXbqddvIn-Hhod4QCVQwk)
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[VAG-B5]
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[VAG-C5]
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[VAG-MK4 VR6](mk4-vr6-wiring)
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## Q: what cars is the 121vag applicable for?
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A: We do not know the whole list. Definitely B5 1.8T Passat but could also work on 5 cylinder Jetta and VR6 and even a 8 cylinder A8. Whatever VAG product with a 121 header please check Hellen pinout above and let us know :)
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