Finished up sorting and labeling the main EMS harness and reinstalled it back into the EMS sitting on the avionics platform in front of the instrument panel. Some of the functions I'll be using will stay behind the firewall (RPM, fuel flow), but several of the functions pass through the firewall into the engine bay. Today I threaded the appropriate functions (fuel pressure, oil pressure, oil temperature, manifold pressure) through the firewall and began routing them across the top of the upper firewall stiffener to the pilot side where most of the sensors reside.
For routing the wires to the pilot side, I added 3 adel clamps to the top flange of the upper firewall stiffener to route the main EMS harness wires and the 4 EGT/CHT sensor wires (for cylinders #2 & #4). On the left side engine mount I split the two types of wires with EGT/CHT sensor wires continuing down to the lower engine mount support and the other 3 (Oil pressure, fuel pressure, oil temperature) out across the middle support of the engine mount.
Main EMS Harness after sorting and labeling all the functions I'll be using.
EMS harness wires threaded through the firewall and across the upper firewall stiffener.