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sManager disconnected from ecu when high boost
Posted: Sat Sep 26, 2015 6:04 am
by 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.
Re: sManager disconnected from ecu when high boost
Posted: Sat Sep 26, 2015 5:22 pm
by AREA876
Post calibration datalog of problem and photos of ground wires in engine bay, it could be a grounding problem.
Re: sManager disconnected from ecu when high boost
Posted: Mon Sep 28, 2015 9:40 am
by Spunkster
What spark plugs are you using?
Re: sManager disconnected from ecu when high boost
Posted: Tue Sep 29, 2015 2:13 am
by AllRight
Spunkster wrote:What spark plugs are you using?
AllRight wrote:P.S. I am using BKR8EIX.
Re: sManager disconnected from ecu when high boost
Posted: Tue Sep 29, 2015 3:01 am
by AllRight
AREA876 wrote: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.
Re: sManager disconnected from ecu when high boost
Posted: Mon Oct 05, 2015 5:50 am
by AllRight
Re: sManager disconnected from ecu when high boost
Posted: Mon Oct 05, 2015 9:23 am
by 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.
Re: sManager disconnected from ecu when high boost
Posted: Mon Oct 12, 2015 2:22 pm
by AllRight
I remade the ground wire. Now it is connected to a bolt of mount of the steering pump. But nothing has changed.
Re: sManager disconnected from ecu when high boost
Posted: Mon Oct 19, 2015 1:09 pm
by AllRight
Hello. What can I do? Problem didn't solved. May be measuring of electromagnetic field is a good idea?
Re: sManager disconnected from ecu when high boost
Posted: Mon Oct 19, 2015 2:40 pm
by 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?
