Will vems fire 8 COP's on vw 3 or 4 wire coils?

[turborabbit77]

I am running an AUdi v8 in my Quantum Syncro.. I have it setup originallyfor 034 engien management.. I want to use the VEMS ECU innstead.

Will the VEMS ECU trigger  factory audi 3 wire Coil on plugs  .. my other option is to run Audi 4 wire coils . Please let me know which one would work with the ECU and How i would go about hooking it up.

I know the wiring already  .. I just do not what ones will work with VEMS.. 
Both coils I have sitting here  Please let me know what i need to make it work.

3 wire coils
pin  1    = ECu ground trigger
pin  4a  = Ground
pin  15  = 12v

4 wire coils   
pin 1    =  12v
pin 2    =  ground
pin 3    =  trigger from ECU
pin 4    =  Valve cover ground

[turborabbit77]

Does anyone know Lugnuts.. I thought i saw something that he confirmed the 4 wire coils worked on a car.. I just wanted to verify it was VEMS and wanted to see if any other modifications to the ECU needed to be done

[dnb]

I am using eight 034 coils with my VEMS on the TVR.   They are 3 pin (gnd, +12 and ECU trigger)

Just make sure you have a VEMS with 8 IGBT ignition drivers.  (that is, no FETs!)

[turborabbit77]

I can i tell what the ECU drivers are in it..?    It is a used unit i was going to buy  it ran on wastespark before..  can i change the drivers if neccessary?

[turborabbit77]

GenBoard v3.x Resources and Specifications

MCU: AtMega128

I a not sure how i can tell what drivers it has.. please let m eknow if there is someway i can tell i can tell

 

[[email protected]]

Unscrew the front plate of the unit and have a look to see how many rows of the Power transistors are populated.
Whats the serial number? If it was a system that was bought ready-made then I can ask the manufacturing team and find out what the spec was.

Cheers

Rob

[turborabbit77]

if its not.. can i have it modified to work with the coils i have..  What would that cost to do so.   

[[email protected]]

All these things are possible.  What country are you in?

[turborabbit77]

I am in the united states so i am not sure of people here who sell the parts i would need.. No number on teh ECu.. I got some pics though







Hopefully that helps.. who in the united states can modify this for me if need be.. And what would it cost..       

Any idea what the jumper wire is for?

[dnb]

OK, the drivers are the black and silver things on the right hand side of the first 2 pics.  You have a full set, so I'd guess you have 8 coil "proper" drivers.  Without knowing the part numbers on them I can't say for sure.

Sequential v8 engines are fun

[turborabbit77]

I am gettting the part numbers hopefully tonight..  of they are the correct drivers  i just have to hook them up to pin 3 of the of the 4 wire VW coils.. 

I ll post the numbers soon..  ANd the Red jumper wire  what is that used for?

[turborabbit77]

he didnt get the right numbers yet.. I told him i need the 8 numbers on the ones hat have a black and metal/silver top on them correct?   ANy number i should look fo rin particualr..  He is trying again to get the correct number i need

[turborabbit77]

here is what he got.. 2 or 3 numbers on each driver  he gaev them all to me.

silver driver top qty 8
top- n408ab
bottom- 14n4dfvl

black driver top qty 8
top-         80344
middle-     fqpf
bottom-    20n05l

ANy info you can give to what coil i would use on this ECU would be great and how to wire them..IF I can keep the COP's that i have please tell which one i can use

And help help with the setting woulbd be great too. 

Thanks Chris

[[email protected]]

The silver topped power transistors are IGBTs which we use for directly drive of coils.

The info you need can be found here:
http://www.vems.hu/wiki/index.php?page=MembersPage%2FPhatBob%2FUserGuide
Under the heading "Connecting Ignition Components"

Here is a suggested way of connecting the COPs


If you want to use the COPs with the transistor built-in you need those transistors removed, and a wire link put in their place.

Rob

[turborabbit77]

So then.. I want to use the 3 wire VW coils... without the internal driver

Hooked up this way
pin 1 - trigger                 ECU
pin 4a - ground               constant ground
pin 15 -switched 12 v      5 amp fused power

NO different freom the factory wiring then.. any setting i have to change..

So pins 10,11,12,24,33,34,35,36  Are all of my coil connections.. is there a link to somewhere saying the pinouts for all o fmy wiring..

Do you guys any base map or base settings that should get me up and started.
I am new to this ECU..   SO i may just have to download a manual or some file to get me up and going.  Tahnks alot guys..    Aprerciate it.