problem with vems

[roger shaw]

Hi all

had vems for about 18 months,went from 1.1.27 to 1.1.95 about 3 months ago
since then its had a mind of its own,changes settings
boost vs tps curve
boost target 1st gear
boost refdc 1st gear
boost alternate settings
output channels
engine set up(injector flow rate,put 440 in and 65281 comes up)
engine is a 3b with rs2 turbo and injectors

any sugestions would be gratefully received

my thoughts are that the ecu has a bug in it

can alter setting when not connected to ecu but when connected it has a mind of its own

when driving you can feel a slight hesitation on acceleration which I think is the ecu changing the setting

the above are only some of the setting which are changing

roger

[Jamo]

What version of vemstune are you using?

[roger shaw]

vems

Hi

V3

config version 1.1.87

firmware version 1.1.88

have tried several different versions

roger

[Jamo]

No the actual version of the vemstune program, certain firmwares are only compatible with the latest downloads from here http://www.vems.hu/download/v3gui/ the latest being 2011-07-20

[roger shaw]

Vems

Hi

version 1.1.95
serial no v3.3_n002588

where will I find it

roger

[Jamo]

In help about

[roger shaw]

OK,
vemstune 0.30.18

roger

[cooperquattro]

maybe try the latest one

[Jamo]

Sorry he has the latest one, sounds like the issue s2martyn had, I would email Vems.hu or maybe A4kquattro can help you?

[roger shaw]

Hi
I,ll try the email route

thanks roger

[Jamo]

The last time I had this issue on my Vems what I did was downgrade to 1.1.27 upload the base install map I got from my vems supplier and then update it again to the latest version upload a default map so the scalars get added and then install my active map.

What was you upgrade procedure when you did this

[roger shaw]

Ok,have loaded firmware 1.1.95
vems has now stopped changing settings on its own
can now put settings in and they stay there
also it has stopped shutting down for no reason
all I need to do now is tune it

thanks for the help

roger

[Jamo]

Sounds like you modified the values in the ecu post 1st upgrade rather than upload a map to create the scalar values in the ecu, glad it is working

[A80Avant]

just noticed this, good job!