Calibra Turbo

[Tcal]

It seems that there´s always something new to fiddle with, so i thought that maybe it´s better to create my own "project"page here..

My car Is Opel Calibra Turbo 4X4 1995, engine is 2.0 16V turbocharged C20LET.
VEMS was already installed when i bought that in January 07, so i don´t have much knowledge about those trigger setups and things what are needed to do when installing.
Previous owner had it tuned pretty good, but there´s always something to improve.

Here´s an pic of it from last winter


Engine



Without covers



I use it as my daily driver, so far it´s been very reliable to use. I live in Finland, and as you see from pic above, winter is quite snowy, long and cold in here. For example in last winter here were near -40c temps for few weeks, and i´m driving with that thing in those temps.

12.11.07 Vems updated to firmware 1.0.73

18.11.07 Changed 12X12 to 16X14

I got that Cold Start issue solved, but i´ll add a link to it:
http://www.vems.co.uk/forum/index.php?topic=280.0

Now i´m working with that stalling problem
http://www.vems.co.uk/forum/index.php?topic=296.0

Stalling cured, i enabled that idle PID controller and put some small values to it.
Those bigger tables helped a lot too, i added more points to near idle. 600 800 1000 1200 ->

29.01.08 Changed slow IAT sensor to faster one: Bosch 039 to 085. 

[Tcal]

Tried to update to 1.0.73, with no luck..
It started but ran very rough, with lots of unburnt smell of fuel coming from tailpipe.
And it felt that ignition was everywhere, no good.

I did change that h2 table, is there something else to do too??

h[0]=02 08 04 01 10 20 40 80
h[1]=00 00 00 00 00 00 00 00
h[2]=50 40 50 40 10 30 10 30

I´m not using secondtrigger at the moment.

Here is working trigger and ignition setup from 1.0.53



And this is the trigger from 1.0.73


I did take a short log of it too:


Those tooth relation stuffs makes me wonder that are they wrong in my current setup.
Didn´t play much with them, i thought that i´ll ask here first.

[bcool]

As i understand the tooth relative stuff only applies to one of the filtering options.... pretty sure it's the advanced filtering. 

[bcool]

BTW that's a cool project. Being in America we dont get Opels, Citroëns, etc over here, but from the sounds of it that opel looks to be a nice platform.

[Tcal]

Thanks for the reply..

Did some research in wiki and found something interesting:

NOTE: if upgrading from 1.0.53 or older you will need to type this in by hand
Manttg20h00g21h00g22h00g23h00g24h00g25h00g26h00g27h00mcsbye

Wonder what that does??
Will that just change that h2 line or could this be the answer to my problem?

[rob@vems.co.uk]

I'd not start typing things like that in, what is it that you are trying to achive?

[Tcal]

I´m trying to update to firmware 1.0.73

[Tcal]

Tried with other full 1.0.53 version too, no luck, same problems

Hmm found that vemsv3.ini and vems.hex are modified. Gets interesting now.

I called to previous owner and he told that there were some problems with hall sensor in second trigger. It was broked for some reason 2 times, so he get pissed with it and he changed those ignition and wiring setups. If he remembers correctly...

He advised me that there´s two way to do that update:

1. Modify that vemsv3.ini from .073 so that ignition is same as now ( I don´t know that why is that vems.hex modified too)
2. Change wiring from EC36 to original. And at the same i should put some new wires inside vems.


When starting Mt , it has always prompted like this:

It shows that message after i´ve selected that Highboost option.
But i´ve never had any problem so far with it!

I´m using COPs in wasted spark mode..

Wich way would be better...? 

[rob@vems.co.uk]

Are you using 1.0.73Final:
http://media.vems.se/code/VemsMT1.0.73Final.zip

Please do not try to upgrade from one firmware version to another by loading MSQ files, this can work but is likely to be problematic theres a guide written here:
http://www.vems.co.uk/forum/index.php?topic=120.0
The second post explains the ignition.

[Tcal]

yeh i´ve done that upgrade like in that link, but obviously it won´t work because those ignition changes..

I´ve been thinking this problem and i think i might try to convert those wirings and vems back to original state.
It´s probably the best way to do because of future updates and stuff.

When i called to previous owner he told that i should put some new jumperwires inside vems, that´s because of now those cops are plugged in as pairs, if i did understand it right.

Hope i can get all the help i need from here, because i don´t want to disturb him all the time, and maybe i can learn some new things too...

[rob@vems.co.uk]

Ah! You're running COPs...
They should be wired individually and you'll need to use the Ignition Dual Out function, which fires the channels in pairs 00 & 01, 02&03, 04&05, 06&07.

So which pins are your COPs connected to?

If you had, for instance, COPs 1 & 4 wired to 00 & 01 and 2 & 3 connected to 02 & 03 then your H[2] table would look like:

h[2] = 20 00 20 00 20 00 20 00

Rob

[Tcal]

h2 looks like this now h[2]=05 04 05 04 01 03 01 03
And it is in dual output mode.

Those ignition settings are in this thread, in reply 1.

I think i´ll try to investigate those wirings tomorrow, and look inside that Vems unit too.

[rob@vems.co.uk]

Well 50 and 40 are pretty much sure to be wrong, so find which pins have IGBTs populating them, and which pins are connected, then I'll come up with something thats more likely to be right.

I might split this thread off into its own Wasted spark using COPs thread.

[Tcal]

Could this cause that rpm signal go like that what log shows earlier in this thread?.
Or is there more problems to come with this? Probably this solves that but...

Those COP´s are from Audi 1.8T so they are active COPs , am i correct, no need for those IGBTs ??

Did some measuring today

Wirings to COPs :

Cyl 1 = 00  (Pin 35)
Cyl 2 = 03  (Pin 36)
Cyl 3 = 05  (Pin 12)
Cyl 4 = 04  (Pin 11)


Few pics that may help

[rob@vems.co.uk]

There are not enough IGBTs (Silver tabbed ones) to drive your coils.
Its easy enough to solder a new one in, and while you're doing it set them up so that coil 00 & 01 (EC36pin35 and pin33) and coil 04 & 05 (EC36pin11 & pin12) are populated.

Cheers

Rob