Problem uploading VEMS firmware

[a4kquattro]

I'm a little late to this thread, but most of the replies on here are accurate: vemstune seems to work much better on firmware revisions over 1.1.6x. While it is technically compatible with 1.1.27, sometimes rolling back to that firmware is more difficult with vemstune than with the .bat file and the 'loopback' trick with the paperclip.

[GazzaG60]

always keep a paper clip handy for the reset procedure. i always have a couple hanging about.

[Jonas_R]

Excellent

[Jamo]

But it should be fine to use VemsTune with 1.1.27 right?

Yeah I had no problems using it with vemstune once the ecu was on the version

[Jonas_R]

But it should be fine to use VemsTune with 1.1.27 right?

[Jamo]

It's only a problem when you need to go to 1.1.27 from any other verison and try to do it with vemstune. If you want to downgrade or upgrade to 1.1.27 use megatune. I would say this applies to most versions up until 1.1.5x from my experience of firmware uploads

[A80Avant]

aa i see.
better think of it twice before i upgrade then. i have forgotten how to do it already.

Good thing Marc is always kind to help

[Jamo]

you can also use the old v3gui software to reflash the ecu with the older firmwares.

i would go through vemstune to upgrade/downgrade though(even though i havent done that yet).

Only for the newer versions, vemstune sucks for the 1.1.2x verisons for firmware uploads.

It will go into a loop, I had a success of 1 out of 5 attempts with it.

No such problems with megatune, this isn't really surprising as vemstune was aimed for the newer versions

[A80Avant]

you can also use the old v3gui software to reflash the ecu with the older firmwares.

i would go through vemstune to upgrade/downgrade though(even though i havent done that yet).

[Jamo]

Msq file have to be uploaded in megatune. Once uploaded connect via vemstune and save the config as a .vemscfg file

Upload config in vemstune yes is the same as upload msq in megatune

[Jonas_R]

Yup that seemed to work now, used mark's file after the reset and now I was able to use VEMStune to upload firmware 1.1.27 and config 1.1.27.

And thanks for the help.

Jamo:
The basemap I have is a MSQ file, can that be imported into VEMS tune?

Also when you upload config to VEMStune I assume that corressponds to loading a msq file en MegaTune? Or I'm way off?

[Jamo]

Use the megatune option I posted above, megatune download is on the EFI website with the required files

[Jonas_R]

And no it still crashes when I tried to upgrade from 1.1.23 to 1.1.27 via Vemstune build in firmware upload.

[Jonas_R]

I just got it working. My ecu had firmware 1.1.23 but seems to be working now using my server and the seriel port on it. Perhaps the serial pcmcia was bad.

Reason for using 1.1.27 was that I got a Nice basemap from mark for rs2 injectors. So wanted to try that out first and get familiar with vemstune and get VE table etc sorted.

[Jamo]

1.1.27 is old, I used it 2 years ago. Now Im using 1.1.70 on my audi.

Ditto I'm on the same 1.1.7.0 firmware, but a lot of Audi S2's are using 1.1.27 firmware as it is ultra stable for the engine.

And it's a good place to get a nice basetune before going to 1.1.70