Coil issue

[Jonas_R]

Ahh oki just looked like the crimbing style connectors on the pictures.

But I think your main problem is the ground on the shaft. A quick check to see if that is the cause of the problem would be to ground the single wire to the camcover instead of the shaft that holds the coils. Then check if you get spark and if you do then use +12V from 3B coil plug as suggested above and appropriate ground for TTL low.

[jacobs2]

I have changed the wires like you said, and used the OEM 3B connection.
As shown on the picture.

Still no spark.

I dont have to change anything in Vems?

I`ve heard about coils with and without drivers..

[UrS4boy]

I dont have to change anything in Vems?
I`ve heard about coils with and without drivers..

I don't know VEMS. However, I can say that the coils have their own drivers. What that means to VEMS, I do NOT know. You need help from VEMS people.

[jacobs2]

I`ve been in contact with 034, and we (probarly) know what the problem is.

The little ground wire in the 4-pins connector on my first picture is the "TTL" ground, also called ECU ground.

The old aby coils didnt have that, so thats why they didnt have a problem.

according to 034 that can be changed in my vems, but they don`t know how.

Does this sounds familiar to anyone here?

Can I change that myself? and does it have to be changed in the software on the hardware of the ecu?

And maybe create an extra wire to the ecu?

Thanks!

-Jacob-

[UrS4boy]

Jacob: Suggest that you contact Marc Swanson at EFI Express. He is a VEMS dealer/tuner and will be familiar with both the 034 HO coil and the LS2 coil systems and what the hardware and software needs are for each.

[jacobs2]

Ok.

In a few words, i have to supply a TTL ground (computer ground) from the VEMS.

[Jonas_R]

This is my settings from setup from Marc and that works:

[Jonas_R]

Could you please confirm that pin layout on the harness:

2x plugs for power and ground, these plugs contains the power pins and also 1 pin for ground is this battery ground or TTL ground?

2x plugs for ECU trigger signal - one plug has 2 pins and the other has 3 pins - correct?

2x Ring terminals is this for TTL ground, battery ground or secondary ground?

[jacobs2]

This is my settings from setup from Marc and that works:

do you run megatune?

[Jonas_R]

Yeah I used to run megatune, at the moment I'm back to motronic. But that is the setting I was using on VEMS. Why?

[jacobs2]

My setting-screen is different, for example, i don`t have the 6v option in my screen..

I have vemstune

[jacobs2]

Could you please confirm that pin layout on the harness:

2x plugs for power and ground, these plugs contains the power pins and also 1 pin for ground is this battery ground or TTL ground?

2x plugs for ECU trigger signal - one plug has 2 pins and the other has 3 pins - correct?

2x Ring terminals is this for TTL ground, battery ground or secondary ground?

Its like this.

The 2x ring terminals are bolt on to the cam-cover for ground, dont know what theyare called.

[Jonas_R]

Can you change the setting "ignition driver" to dummy instead of normal? Think that could be your problem.

[Jonas_R]

I will go down and check my wiring tomorrow.

[jacobs2]

I can change it in EDIS, not in dummy.