Posting all my questions here instead of starting a million threads.
My particular swap involves an 89 single cab truck with a 3vz and standard 4x4 transmission, a wiring harnes from a 96 standard 4x4 Tacoma and a 5vz from an 98 automatic 4runner.
My current question is about the wiring harness i am building to connect the engine(5vz)wiring harnes to my trucks body harness and one of the connections that involves three wires:
Pin #16 on the white 5vz engine to body (connector ik2 in my tis)
Male: COR, efi relay, +B, vsv evap
Female: +B data link, vsv vapor pressure sender, MAF meter, o2 sensor, idle air valve
Pin #5 on the grey 3vz body harness (c1)
Male: COR, efi main relay, a/c idle up, vsv
Female: tccs ecu +B +B1, ox sensor, check connector, fuel pressure up, vsv
Pin #12 on 5vz 4x4 ECU e5 connector
My question is weather or not I solder all three of these wires together or not, also what is function +B?