Unless you have an 8 channel logic tester, oscilloscope, tight tolerance dmm (i.e. fluke), vacuum desoldering station and esd soldering station, attempting to fix an ECU should be the least on your mind.

Take a look at DM4, physically deformed/blown? Difficult to diagnose and no, I no longer bother with ECU repair. But have a look here:

http://www.autoecmecu.com/honda-ecu-ecm.html