Search found 53 matches

by kornsined
Tue Nov 13, 2007 6:53 pm
Forum: K-Pro / KManager
Topic: daughterboard com error
Replies: 21
Views: 17290

I finally got this problem fixed. Fuel pump relay was burning out. Replaced it and all is good.
by kornsined
Mon Sep 24, 2007 5:26 pm
Forum: K-Pro / KManager
Topic: What is wrong?
Replies: 5
Views: 4332

All are done and were checked.
by kornsined
Sat Sep 22, 2007 6:33 pm
Forum: K-Pro / KManager
Topic: What is wrong?
Replies: 5
Views: 4332

There is no error code other then the "daughter board" error.

BTW, datalogging helps little since it cuts out everytime the error happens.
by kornsined
Thu Sep 13, 2007 6:27 pm
Forum: K-Pro / KManager
Topic: What is wrong?
Replies: 5
Views: 4332

What is wrong?

I originally was having a "daughter board communication error". This has now progressed to maybe a sensor problem.

Driving the car, CEL will come on (above mentioned error). When this happens the car will not accelerate when the gas pedal is pushed but it sounds like it's reving to the 4000rpm ...
by kornsined
Tue Aug 28, 2007 5:55 pm
Forum: K-Pro / KManager
Topic: daughterboard com error
Replies: 21
Views: 17290

Thanks for the info.
by kornsined
Mon Aug 27, 2007 5:47 pm
Forum: K-Pro / KManager
Topic: daughterboard com error
Replies: 21
Views: 17290

Again the problem happens. My ecu was sent to Hondata and is fine. My charge system was tested by Honda and is fine.
by kornsined
Fri Jun 29, 2007 4:57 pm
Forum: K-Pro / KManager
Topic: daughterboard com error
Replies: 21
Views: 17290

did that when I tested it on a different car and the problem never occurred.
by kornsined
Fri Jun 29, 2007 12:20 pm
Forum: K-Pro / KManager
Topic: daughterboard com error
Replies: 21
Views: 17290

Yes, the 7th gen civic is much easier for engine swaps because the wiring is very close to the RSX. Some models have wideband o2 sensors as well.

It sounds like an output or sensor from the ECU is being shorted to either 12V or ground. This then shuts the ECU voltage regulator down and therefore ...
by kornsined
Sat Jun 23, 2007 5:37 pm
Forum: K-Pro / KManager
Topic: daughterboard com error
Replies: 21
Views: 17290

Nevermind
by kornsined
Sat Jun 16, 2007 8:09 pm
Forum: K-Pro / KManager
Topic: daughterboard com error
Replies: 21
Views: 17290

Problem alleviated.
by kornsined
Fri Jun 08, 2007 4:40 pm
Forum: K-Pro / KManager
Topic: daughterboard com error
Replies: 21
Views: 17290

I think I may have found the problem. I checked the fuse box and the a/c condensor relay was loose. I secured it and haven't had the problem come up again.
by kornsined
Thu Jun 07, 2007 5:11 pm
Forum: K-Pro / KManager
Topic: daughterboard com error
Replies: 21
Views: 17290

Checked the ecu and connections. Nothing seemed loose.

The only error code I got was "Daughter board communication error". I did recently (prior to this problem) turn my OBDII on to check for any DTC's and got P1298 and the secondary O2 sensor error. Although I am not running a cat so I figured ...
by kornsined
Wed Jun 06, 2007 5:42 pm
Forum: K-Pro / KManager
Topic: daughterboard com error
Replies: 21
Views: 17290

This error seems odd and something simple.
by kornsined
Tue Jun 05, 2007 7:12 pm
Forum: K-Pro / KManager
Topic: daughterboard com error
Replies: 21
Views: 17290

I don't think 7thgen civics would have this problem then since they are very similar to the RSX.

I understand the concern from you guys. I guess it's easier to point the finger to the ecu then the harness.
by kornsined
Mon Jun 04, 2007 5:24 pm
Forum: K-Pro / KManager
Topic: daughterboard com error
Replies: 21
Views: 17290


The rough idle is unrelated to the daughterboard error. None of the engine swap harness I've examined supply keep alive power to the ECU. That means that the ECU never performs idle learn and the idle will never be smooth. The idle valves get sticky too.

I never knew that. Good heads up.

There ...