Recent Posts

Pages: [1] 2 3 ... 10
Modifications and Repairs / no serial nr
« Last post by izmirliss on February 10, 2020, 08:00:07 pm »
i bougt nev v3 board with sr nr 19023
after a few use ecu always in boot mode no firmware update and atmega has too much heat but still works
when i try to log on with vemstune ecu sr nr 00000 fw 1.2.38
any advice
thank you
General Discussion / UK based tuning
« Last post by Seight-v8 on February 08, 2020, 01:57:45 pm »
hello all,

Anywhere in the UK that does VEMS tuning?

Cars had 5 years of upgrades, managed to get 50miles in last year before the weather changed, so missed last years opportunity.

Looking to get a tuning session done this year in the summer, and want to get something organised.

anyone help.

Configuration / Re: LPG fuel pressure correction
« Last post by lost on February 04, 2020, 01:10:46 am »
Can anyone help i want to connect two map sensors (same, on on lpg pressure hose, second on vacuum hose) to vems diff amp on vems v3.5.

It also has temp sensor for LPG
Triggering / Re: Auditrigger-engine not starting
« Last post by Reini1977 on January 30, 2020, 09:49:48 am »
thank you

will do so, when i have access to my Notebook again..tomorrow

yes, swapped the polarity, can verify with scope if necessary...

also, i have a nice trigger signal and rpm

plugs are firing, injectors are working

is it possible that i have to shift the ignition order?

Triggering / Re: Auditrigger-engine not starting
« Last post by MWfire on January 30, 2020, 03:16:58 am »
Upload a config and trigger log.
Did you change polarity of tdc home sensor?
Triggering / Auditrigger-engine not starting
« Last post by Reini1977 on January 30, 2020, 01:46:14 am »
hi all

built a new I5 20V motor, FW 1.2.38

i have rpm signal, i have fuel injection, i have spark, but engine behave as following

when i set cam sync wheel to TDC (wrong setup) , engine starts, but a bit on the gas, and i get trigger errors

when i set cam sync so, that the hall sensor is in the window exactly when crankhome pin is on the VR sensor (setup correct like factory), i can do what i want, the engine doenst start

tried everything, richening up, leaning out, use different offset angles, nothing

it sounds like from time to time i have a hissing noise in the exhaust, but nothing more

can you give me a direction?


General Discussion / Re: I want fire and flames rev. limit
« Last post by gunni on January 21, 2020, 12:41:21 pm »
Just try it and report back.
General Discussion / VEMS for sale on ebay
« Last post by paul_f on January 21, 2020, 02:37:25 am »
Hi all,

I am selling my VEMS on eBay -

General Discussion / Re: I want fire and flames rev. limit
« Last post by Mac-B on January 20, 2020, 10:58:48 pm »
According to this:

and more precisely this chart:

i was expecting the behaviour i described above..... only active after big throttle input and
as i limited the time to 5s it should be safe ?
i´ll use less retard the link above suggests " The highest ignition advance value plus 5-10", imho relative --> i´ll start with 10° absolute (ATDC)

the biggest open question is the behaviour of the "Maximum fuel enrichment". If zero --> no fuel in ALS OR full VE value and no add-on value ?

I´ll try it out, my hope was that somebody can explain me in theory first what the values mean, the F1 help is not self-explaining on that feature.
General Discussion / Re: I want fire and flames rev. limit
« Last post by gunni on January 20, 2020, 06:53:42 pm »
You need to keep the ALS tight, otherwise according to your settings it would be on basically all the time.

Reactivation 5%
max retard at 2% TPS and min at 4% TPS, this means only below 4% will there be anything happening and only below 2% will it all be happening.
ALS retard at 2000rpm and 2100rpm, this means above 2100rpm you´ll have the full effect. It´ll turn off below 2000rpm

I´d try about -20° absolute as a start, otherwise there is a chance you might not be able to fire the mixture at all.

Try it

Also what is add-on?
Do some logs and put them up in the vemstune sharing center .

Pages: [1] 2 3 ... 10