Wiring issue, need some help

[NismoDriverS13]

I got a 1992 Nissan 240sx hatch with ka24de

I rubbed through a wiring harness on the driver side due to being low...

Now the oil pressure light is on and check engine light. when I checked the wires, black and red wires were damaged. Anyone know the gauge for those wires? Also would that damage cause the two indicator lights yo go off?

[rawgarage]

Re check wires

Cut solder shrink wrap them

[NismoDriverS13]

Not sure if I'm gonna have enough slack through the harness to cut and solder them, was thinking of extension...

[kruked]

They are common wires. Go to the junkyard and get some