Mount the fuel pump inertia switch adjacent to the computer, and the power distribution panel near the starter relay. Connect the harness to the engine, power distribution panel, vehicle speed sensor and alternator. Use the original wiring harness connections for the temperature oil pressure sensors. Install all the engine components and the exhaust as outlined in the Hayes or Chilton's manual. Install the throttle cable.
Electrical work comes next.
Install the color coded wiring using your manual and following the labels you made earlier. Early model Rangers will require the addition of a check engine light. Install any fuses and reinstall and reconnect the battery. Replace all the fluids and check for leaks. Start the engine.