I just sold my P05 in favor of a P06 so I can get it fitted with a Hondata s100. The ECU came in today, but I can tell that it had been opened. The board looks good but the reason I wanted a P06 is because the P05 uses a 1 wire oxygen sensor and I've read that it is not supported by Hondata. There are no transistors on IC14, IC15, or IC16, and no resistor on RP17 so I am pretty convinced it is an original 5-speed. But somebody could POSSIBLY have switched this for a P05. Yes, the sticker says P06-A00 on it, but anyone who is shady enough can transplant stickers, desolder some resistors, or switch out an entire board. My problem is that I can't tell a P05 board apart from a P06. Can anyone? I am going to try this ECU in my friend's CX at some point, and I should get a CEL code 41 if I run it long enough. Here's the pic I snapped of the board:



If anyone is savvy with the ECUs on here, a little help would be great!

 

On a p05 q30 in the middle of the ecu won't have a transistor in it...
You could have used your p05 by adding the component to q30 or by disabling o2 feedback.

 

awesome, thanks!