In general, these two wires will be:
* One wire from the ignition system: This wire carries power to the starter solenoid, and the neutral safety switch prevents the starter from engaging unless the transmission is in park or neutral. This wire will be energized when the ignition key is turned to the "start" position.
* One wire to the starter solenoid: This wire completes the circuit to the starter, allowing it to crank the engine when the ignition switch is in the "start" position *and* the transmission is in neutral or park.
To find the correct wires:
1. Locate the neutral safety switch: It's usually mounted on the transmission itself.
2. Consult a wiring diagram: A factory service manual for your specific 1980 El Camino will be the most reliable source. You can often find these online through sites selling repair manuals or in automotive libraries. The diagram is crucial because it shows the correct wire colors and functions.
3. Use a wiring schematic: Even a generic diagram for your transmission type (e.g., TH350, TH400) might be helpful, but always double-check against your specific vehicle's documentation.
Without a wiring diagram, it's impossible to definitively identify the wires. Incorrectly connecting the neutral safety switch can prevent your car from starting or, worse, cause damage to the starter motor or other components. Proceed with caution and use a wiring diagram for safety.
