SR20DET Swap Engine Harness Wiring Diagram Guide SR SR20

Doing the wiring for an SR swap can be a daunting task, especially for those who do not want to deal with figuring out which wires to cut & extend. Here at FRSPORT.COM, we will walk you through the wire harness modification so that your engine will start on the first try!

This guide is for swapping an S13 SR motor into an S13 240SX chassis.

Before we begin, please make sure you have the following tools in order to simplify the process:

• A roll of Electrical tape (3M brand works best)
• Wire stripper & cutter
• Soldering iron & solder
• Heat shrink tubing (optional)
• Heatgun / Lighter to shrink the tubing (optional)

Heat shrink tubing and a heatgun is optional, but gives the modifications a professional touch and is less prone to potential future problems.The first modification required is replacing the SR dash connector with the stock KA dash connector. The SR dash connector (white, as shown in Figure 1) will not mate with the KA dash harness, so it needs to be replaced with the KA dash connector. Cut both the SR & KA dash connectors, and wire the KA one to the SR harness using the table & wiring color guide below.

Read the entire post at the FR Sport Forums.