Audi 3B engine harness with mot55 connector (actually Audi 3B is just a guess, is this correct ? Request did not even say "Audi", only "vehicle")
Might want to enjoy [this standup]
I can't start the vehicle and nothing in the log. Everything works manually, but no boot. I have tried other 55 VEMS 55 on the vehicle, it starts instantly.
Solution is simple, same firmware and config and identical HW=> it will start. Just need to check step by step.
Please edit this project page, write or link all information about your engine and project (including measurements and config) thematically...
Support is only possible if the most uptodate information is seen with no misunderstanding.
- correct engine-and-harness must be used
- (verify, make measurements of GND, supply, and resistance of CLT and MAT sensors via the mot55 connector, take note of estimated engine temperature)
Note that there are PTC (default for 3B, around 400 Ohm at 25C) and NTC (around 2252 Ohm at 25C, not default but often used) type MAT sensor for Audi 3B engine.
- save known good config
- publish known good config on your page
- save wrong config
- publish wrong config labeled as such
- upload good config to Audi3B/8815 ECU
config must be uploaded and perhaps adjusted according to the setup.
2014 june specs when sent out:
- oid9204 audi3b/8815 VEMS motronic55
- Model: Audi 3B (+0.70EUR)
- Knock input channels: 0
- MAT input: Audi factory PTC
- sensor resistance can be measured with sensor unplugged. Or through mot55 connector GND and sensor input (only unplug ECU with ignition off!)
Please see and read carefully : https://vems.hu/vt/help/main/error_reporting.html
Updating your page to the best of your knowledge makes support possible. (update your page before any other form of communication).
Please note that the 2022. 04. 20. email does not even contain the engine type, or even the word "Audi". (it does not look like enough information to even start anything).
You might understand that exact information, as full as possible is the key to success.