OBD: Uploading Calibration Data Yourself

Hi,

Has anyone ever tried to perform their own OBD tuning? There are a lot of parameter maps available for download for the 'Esel.'

Varianti wrote:

Has anyone ever tried to perform their own OBD tuning? There are a lot of parameter maps available for download for the "Esel" (presumably a specific vehicle or engine).

It's not enough to just use any old parts (!? They definitely need to be compatible with the specific engine / link?).

To get the vehicle data into the MSG (Main System Gateway), you need specific software and a compatible interface between the diagnostic tool and the OBD socket.

Not to mention the checksums that need to be adjusted in the dataset.
because they are checked by the MSG (Message Security Gateway). If there are any errors, the system will lock up, and the engine will no longer start.

The work of a chip tuner is already quite complex and involves purely digital processes that are not something anyone can just do on a whim – let alone make meaningful adjustments to the engine's parameters.

To get the vehicle data into the MSG (Main System Gateway), you need specific software and a compatible interface between the diagnostic tool and the OBD socket.

Not to mention the checksums that need to be adjusted in the dataset.
because they are checked by the MSG (Message Security Gateway). If there are any errors, the system locks up, and the engine cannot be started.

The work of a chip tuner is already something that cannot be easily done by everyone just passing by, especially when it comes to making meaningful adjustments to the vehicle's software for the engine.

I assume that creating the characteristic field is the most difficult part of the operation, and that applying the characteristic fields can be done by anyone following instructions. So, if the difficult part already exists, I've been wondering what's needed to get the characteristic fields into the MSG.

And supposedly, it should be easy to do via OBD. Even with the option to back up the original data.

Varianti wrote:

I assume that creating the characteristic curve is the most difficult part of the operation, and that applying the characteristic curves can be done by anyone following instructions.

To tune a vehicle, you don't need to create new control units (like a developer would), but rather modify the existing control units in such a way that the engine does what you want it to do.
Whether what one wants leaves the engine with a chance of survival is another matter entirely .

Another issue is acquiring the necessary software and hardware (which can be expensive!), understanding which department is responsible for each function, and learning how to use the actual case management software.

See, for example.
http://www.evc.de/de/download/down_winols.asp

The link was quite interesting. I took a look at the user manual. At first glance, it seems rather confusing and complicated. However, that wouldn't necessarily deter me.

For example, back in the days of gray DVDs, when there weren't any convenient 'all-in-one' programs, I struggled with TMpeg and VirtualDub, along with various tutorials. VirtualDub can do almost anything, but it's quite complex to use. However, if you just want to copy a DVD, a few clicks in the right places are enough, and it works, even though I didn't fully understand what it was actually doing. Without those tutorials, there would have been no chance.

Okay, I admit it: a PC is not the same as an MSG; and also, not much can go wrong if you accidentally press something.

Okay, so I'm marking my previous question as (currently) not feasible and will wait for whatever advancements we might have in this area. I thought I could do something with my new CAN-BUS. So, I guess I'll continue to just clear error codes and unlock GRAs.