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Need help for vems installation and programmation

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Old Nov 1, 2023 | 05:01 AM
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Default Need help for vems installation and programmation

Hello,i am max,french,and i am putting an ecu vems pnp with vag cop by peep
i put the ecu and wiring on my car and i have some problems....
First i show you m'y wiring and kit i receve
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Old Nov 1, 2023 | 05:05 AM
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Old Nov 1, 2023 | 06:01 AM
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My first problem is my cops with no spark and have no signal...
i put a +12 v with 7,5amp fuse to 4 cops
I put it on ground
I put signal on the ecu as shown on picture

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Old Nov 1, 2023 | 06:05 AM
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When i put my multimètre on my cops plugs i have:
+12v ok
Grounds ok
But non signal and finally no spark...
Can you help me on this first point please?
If vems owners Can help me with some pictures of cop installation ,or with informations,it will be cool!!!
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Old Nov 1, 2023 | 03:50 PM
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I make a part to put instead of maf in alu
Now,i Can put thé air sensor on it..
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Old Nov 1, 2023 | 03:51 PM
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Old Nov 1, 2023 | 04:32 PM
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I've never seen a 928 kit, very cool. Nice work with the intake pipe too

For your COPs, have you tried setting "testing mode" (in your screenshot of the Ignition Outputs menu) to "ON", and then clicking the test buttons?

You should have the spark plugs in the COP, but not in the engine (of course), and the wiring otherwise assembled. With the plugs not firing, I assume the signal line would sit around +12v, but I am not familiar with those COPs specifically.
Also be aware the paired output will fire at the same time!


Edit: hang on, your harness is not wired for COP. Just pin 36 is connected, this looks like a distributor config? You will need to add the COP connectors to the EC36 connector!

Last edited by four0four; Nov 1, 2023 at 04:35 PM.
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Old Nov 1, 2023 | 05:37 PM
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Originally Posted by four0four
Je n'ai jamais vu de kit 928, très cool. Beau travail avec le tuyau d'admission également.

Pour vos COP, avez-vous essayé de régler le "mode test" (dans votre capture d'écran du menu Sorties d'allumage) sur "ON", puis de cliquer sur les boutons de test ?

Vous devriez avoir les bougies d'allumage dans le COP, mais pas dans le moteur (bien sûr), et le câblage autrement assemblé. Avec les fiches qui ne fonctionnent pas, je suppose que la ligne de signal se situerait autour de +12 V, mais je ne connais pas spécifiquement ces COP.
Sachez également que la sortie couplée se déclenchera en même temps !


Edit : attendez, votre faisceau n'est pas câblé pour le COP. Seule la broche 36 est connectée, cela ressemble à une configuration de distributeur ? Vous devrez ajouter les connecteurs COP au connecteur EC36 !
thanks for your interest !! On thé picture,the cop was not plugged!it was when i receve kit...
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Old Nov 1, 2023 | 08:53 PM
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Yes, you'll need to ask Peep for instructions on assembling it into the harness. You'll need to run the wires thru the firewall to where VEMS is, obviously.

If you still have the distributor set up, it may be simpler to get things running with just that, and move to COP later once you're more accustomed to VEMS/Vemstune!
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Old Nov 2, 2023 | 01:15 AM
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Originally Posted by four0four
Yes, you'll need to ask Peep for instructions on assembling it into the harness. You'll need to run the wires thru the firewall to where VEMS is, obviously.

If you still have the distributor set up, it may be simpler to get things running with just that, and move to COP later once you're more accustomed to VEMS/Vemstune!
cop and Harness are already mounted on the car.. the Big problem i have ,peep don't want to help me....i Ask him some informations,but any answer from him..
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Old Nov 2, 2023 | 05:10 AM
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I think if you ask specific questions he is pretty helpful, but he can take some time to respond.

Without his input, I'd suggest using a multimeter to figure out what the COP harness pins go to - which coil to which wire. Take the info in your screenshot of "Ignition Outputs" and populate the EC36 header accordingly (removing the purple wire currently in position 36). I assume you've already connected the power/ground for the COP harness (probably get +12v from original coil, ground from elsewhere!)

For depinning, follow vaguely this:
but be aware that you need to remove the white plate covering the connector first. I used
this this
, but it seems out of stock at least in the US. Probably easier to find AMP/TE tools in Europe
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Old Nov 2, 2023 | 05:38 AM
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Originally Posted by four0four
I think if you ask specific questions he is pretty helpful, but he can take some time to respond.

Without his input, I'd suggest using a multimeter to figure out what the COP harness pins go to - which coil to which wire. Take the info in your screenshot of "Ignition Outputs" and populate the EC36 header accordingly (removing the purple wire currently in position 36). I assume you've already connected the power/ground for the COP harness (probably get +12v from original coil, ground from elsewhere!)

For depinning, follow vaguely this: https://www.youtube.com/watch?v=tXhHGQhsHDs but be aware that you need to remove the white plate covering the connector first. I used this, but it seems out of stock at least in the US. Probably easier to find AMP/TE tools in Europe
Yes i have already put all pins on ec36(see picture)
I put a permanent 12v for tests, original coils + IS switched by modules....

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Old Nov 2, 2023 | 02:55 PM
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Sorry, not sure I follow. You did modify the EC36 connector to include all 8 of those COP wires?

It should also be possible to put an ohmmeter between say, EC36 pin 35 and ground, hit "test" on either of the "0+1" outputs and see the resistance near 0.
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Old Nov 2, 2023 | 04:04 PM
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Originally Posted by four0four
Sorry, not sure I follow. You did modify the EC36 connector to include all 8 of those COP wires?

It should also be possible to put an ohmmeter between say, EC36 pin 35 and ground, hit "test" on either of the "0+1" outputs and see the resistance near 0.
After Many vérifications,i have no ground câble on pin17 ec18.....IS it the problem?i think is not good....
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Old Nov 2, 2023 | 04:05 PM
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