elturbonitroso

did you put the 10k resisitors on both signals.

Scrappy_Brap

No when I talked to Matt at DIY and sent him the composite log he just told me to put a 10k resistor between the CMP+ and CMP- wires, that fixed the 17 code,

elturbonitroso

put a 10k on both signals.

Scrappy_Brap

Is there any specific way to wire them in?

elturbonitroso

no just put them between the vr signals.

Scrappy_Brap

Do you have a diagram of photo you could provide? I'm not quite sure I understand (im new to this lol

elturbonitroso

the resistor goes between vr+ and vr- on both signals.

Scrappy_Brap

I don't understand what you mean about the Vr+ and Vr-, please specify which wires I am running a resistor in between

elturbonitroso

the resistor goes between ckp + and ckp - and cmp+ and cmp -

Scrappy_Brap

Okay I see now, i currently have a 10k resistor between the CMP wires, I'll put one in between the CKP wires and I'll keep you guys posted! Thanks!

elturbonitroso

if the 10k don't do the trick then put a 1k

Scrappy_Brap

The current 10k fixed the 17 code, hopefully a 2nd 10k resistor will fix the 11... If not I need to go 1k?

Aaron Cake

iTrader: (1)

You may have to experiment with values as you are trying to find the value which puts just enough load on the VR sensor to take up the small spikes but does not load the sensor enough that at low RPMs the signal is too weak.

Scrappy_Brap

I guess I see where my saturday will be spent haha, will update as I make "progress"

Shainiac

iTrader: (7)

Sorry to thread jack, but I’m trying to eliminate coil noise and 11/17 sync loss on a MS2V3.0 with a Zeal card for the second VR. Stock coils and CAS.
I put a 10K resistor on the VR2 OUT back to the main board, but are you guys recommending putting bridging a resistor between VR+/VR- ? or one resistor from VR+ to the board and another for VR- to the board?

For the MS2, VR1 comes in on pins 2 and 24 and VR2 uses the IAC spares. It’s easy enough to intercept VR2 +/- at the Zeal card, but I’m not sure its possible to add resistors to VR1 since I do not have access to the wiring harness.

Thanks

muythaibxr

Putting in resistors won't necessarily help. Which of the 2 VR inputs on the Zeal board did you use?

Shainiac

iTrader: (7)

Ken,
I believe it's using VR1 for G+/G-
I'm using the mainboard VR circuit for N+/N-
Pots are adjusted correctly and was getting sync loss with multiple different CAS's and no resistor.
I just added a 10k inline with the VR2 Zeal output and the input to the CPU (JS10).

Any suggestions before I ship it back to the owner?

Shainiac

iTrader: (7)

Does anyone have any advice on the above? I need to ship this ECU on 2 days and want to eliminate any sync loss.

elturbonitroso

you dont need the 10k on the output of the seal board try a 1k shunt resistor on the 2nd trigger.

Shainiac

iTrader: (7)

Thanks, so a 1k resistor across VR+/VR- and remove the 10k on VR2 out? I've also read about a resistor on the VR+. Good idea?

elturbonitroso

Yes

muythaibxr

For 2nd trig, you should be using VR2. It's set up correctly for the 2nd trigger.

Shainiac

iTrader: (7)

VR1 and VR2 on the Zeal are physically different? I'm not 100% positive which I used. I already added the 1k shunt resistor and mailed the ECU back to the owner (my old ECU).

muythaibxr

Yes they are different. VR1 is set up for the primary (Ne) trigger. VR2 is set up for the secondary (G) trigger. This should also be documented with the board's docs.

The secondary is a lot more susceptible to noise and therefore needs more filtering at the electronic level.