Wire gauge for 7747 ECM orange power wire

[bp71k5]

My electrical diagrams don't list a wire size for the main orange power wire to the ECM. It just lists a 10A fuse to protect that circuit but that seems like a small fuse do something that runs both the ECM and fuel pump. Anyone know offhand if that wire is larger than 16g?

 

[eagle mark]

Same size as all the other wires off the ECM. The fuel pump wire Green/white stipe on most just sends a signal to relay that turns on and runs the pump and a wire from that Ts back to ECM to let it know it's working.

 

[bp71k5]

Same size as all the other wires off the ECM. The fuel pump wire Green/white stipe on most just sends a signal to relay that turns on and runs the pump and a wire from that Ts back to ECM to let it know it's working.

My ECM is buried inside the dash so I can't get to the wires until tomorrow. I actually needed the main power wire from the fuse block (orange). It also supplies the power to the fuel pump wire according to my diagram. I do have the pink/black wire accessible and it looks like it's 16g. I guess if the wires are all the same size than Ill assume the power wire is as well. Thanks.

 

[dave w]

My ECM is buried inside the dash so I can't get to the wires until tomorrow. I actually needed the main power wire from the fuse block (orange). It also supplies the power to the fuel pump wire according to my diagram. I do have the pink/black wire accessible and it looks like it's 16g. I guess if the wires are all the same size than Ill assume the power wire is as well. Thanks.

Usually the main power (Battery +) wire is orange, and is usually 16 AWG. Usually the orange wire supplies Battery + to the ECM, Fuel Pump Relay, and the Oil Pressure Switch. I've worked on dozens of wire harness, but quite often the fuel pump ( + ) wire is gray, but not always. Usually the pink/black wire is a power wire ( + ) from the ignition switch, and supplies ( + ) power only when the ignition switch is in either the start / run positions.

dave w