Ecumaster forum

Can somebody tell me where this comes from?




Greetings

Hi!

You can ignore it. It is communication issue (PC lost some log frames)

Thanks!

This is happening to me as well. I can rarely get a complete full throttle run log without these errors.

Usually communication issues are cause by:

- Laptop connected to charger in cigarette lighter
- Worn/damage USB cable or usb port
- power supply and grounding issues.

From our experience 90% of communication problems are caused by wrong EMU grounding. Rewiring with new cables, to the clear common grounding point solves problems.

Kisielisodd wrote:Usually communication issues are cause by:

- Laptop connected to charger in cigarette lighter
- Worn/damage USB cable or usb port
- power supply and grounding issues.

From our experience 90% of communication problems are caused by wrong EMU grounding. Rewiring with new cables, to the clear common grounding point solves problems.

I am running the laptop on the it's battery, not connected to any power source in the car.
USB doesn't have any problem
The interconnector/pnp harness is made and supplied from the Greek dealer, i doubt it is grounded wrong.

And the problem happens only at high rpm

He does not mean the PNP adapter wiring, but the factory engine harness wiring may have a bad ground. Get out your multimeter and check the EMU grounds to your intake manifold. I have seen both issues with ground wiring to PNP adapter, and power supply +12v (corroded factory connections). Check them all, it's worth your time.

I will check it, it is wiward that it happens only when i get past 7000rpm. Tonight i didn't manage to get not even one log at high rpm without this problem

What kind of coils are you using? Any sort of CDI unit?

ren wrote:What kind of coils are you using? Any sort of CDI unit?

The stock Denso coils (Honda S2000)

try to replace USB cable

Jadzwin wrote:try to replace USB cable

Ok, i will do.

Is this related to my rev counter going crazy sometimes when i rev it high? I am in gear full throttle 7-8000rpm and the rev counter goes down to zero and then back up again.

Sounds like a vibration problem.

PSI-Motor wrote:Sounds like a vibration problem.

ecu vibration? Like bad wiring contact somewhere?