Daughter Board Communication Error

Ironraven · Post by **Ironraven** » Tue Nov 01, 2005 10:37 am

I did a quick search and didn't find an answer... Here's my setup:

- Kpro ECU
-Stock Greddy Turbo 440 16 ohm injector calibration
- 2002 Acura RSX-S
-Greddy Turbo kit w/ cat and 7 PSI spring and FMIC
-IBM R31 laptop

My CEL turned on, but when I went into Kpro to view the engine error code, all I get is the message "Daughter Board Communication Error". The car basically runs fine, although I'm having trouble datalogging because the Kmanager software keeps randomly showing the ignition as "off" and I have to unplug and replug the USB cable in. Here's what I've tried:

1. Yes I did move the ground wire to the engine block.
2. Changing USB cable.
3. Changing laptop.
4. Yes I did check for Kmanager updates...

I bought Kpro about 3 weeks ago, so everything is up to date; I'm lost. Anyone have any ideas?

-------IR

Ironraven · Post by **Ironraven** » Tue Nov 01, 2005 10:40 am

lol... I just saw the exact same thread halfway down the page... but there's no information in it that helps. So, I guess I'll just e-mail hondata and see what's up.

-------IR

Post by **Hondata** » Wed Nov 02, 2005 9:24 am

What spark plugs do you have? The Greddy kits comes with non resistor plugs.

Ironraven · Post by **Ironraven** » Thu Nov 03, 2005 8:04 am

I'm using NGK BKR8EIX resistor plugs, so I'm sure they aren't the problem. Thanks for the reply though.

-------IR

AntonioRSX · Post by **AntonioRSX** » Thu Nov 03, 2005 12:04 pm

Use a choker coil...(the little oval things on the USB cables that usually loops once or twice around it.) I installed a pretty big one, (about the size of an ice cube, looped the cable 3 times around it, and its worked great since.

a friend of mine recommended it to me and it stopped going off-line.

try it...

-T

Ironraven · Post by **Ironraven** » Sat Nov 05, 2005 10:17 am

AntonioRSX wrote:Use a choker coil...(the little oval things on the USB cables that usually loops once or twice around it.) I installed a pretty big one, (about the size of an ice cube, looped the cable 3 times around it, and its worked great since.

a friend of mine recommended it to me and it stopped going off-line.

try it...

-T

My cables both had the static isolaters on them on both sides... I guess I'll have to send it back to Hondata.

-------IR

bossman032 · Post by **bossman032** » Tue Nov 15, 2005 6:09 pm

I had this problem. same exact problem daughter board error.

I can't data log. And car runs shitty what do you guys think is wrong..