[Airjer_]

Dark green/orange - power from ASD relay. Is it ten volts all the time or when cranking? what is battery voltage key on engine off and while cranking.

That wire splices off and also supplies power to the upstream heated O2 sensors, the alternator, injectors, ASD input at the PCM, and theoretically the downstream O2 heater via fuse one in the PDC.

If you have 10.5 volts while cranking the battery may be getting low and that is what battery voltage is also if this is the case there is not a problem. If battery voltage is higher than something is drawing it down or there is some added resitance in the wire somewhere AKA corrosion?