sManager disconnected from ecu when high boost

[AllRight]

Car: 94 honda civic ej2
Motor: B20B
ECU: P28 + S300

Hi.
I installed cpr.
From this moment sManager is always disconnecting from ecu when I am running more then 1.2 bar of boost.
Dataloging is stopping and sManager is freezing.

P.S. I am using BKR8EIX.

Can you help me?
Thanks.

[AREA876]

Post calibration datalog of problem and photos of ground wires in engine bay, it could be a grounding problem.

[Spunkster]

What spark plugs are you using?

[AllRight]

What spark plugs are you using?

P.S. I am using BKR8EIX.

[AllRight]

Post calibration datalog of problem and photos of ground wires in engine bay, it could be a grounding problem.

Data log in attachment. You can see that it stoped when boost is more then 1.1 bar.

I remaked engine ground two week ago when I installed CPR. But I didn't remake "battery to body" wire.
I will make photo on this week.

[AllRight]

I took photos of ground wires. All connections cleaned up and greased by connector's lubricant.









The problem wasn't solved.

[Spunkster]

The ground on the valve cover is not doing anything. It needs to be connected to one of the studs that has a nut on it to hold down the valve cover. As it is it is completely rubber isolated.

[AllRight]

I remade the ground wire. Now it is connected to a bolt of mount of the steering pump. But nothing has changed.

[AllRight]

Hello. What can I do? Problem didn't solved. May be measuring of electromagnetic field is a good idea?

[Hondata]

The grounds do not look like they are making good contact. Take all the paint off at the contact point so that the ground lug is going to bare metal. Are the grounds wires soldered or crimped? Also is there a photo of the transmission ground?