Tune-Up - Rotary: Identification: Distributor
The RX7 engine is equipped with computer controlled ignition. The system has no distributor. It uses 2 coils controlled by the computer to fire the spark plugs. The Leading coil has two wires to the primary and the Trailing coil has seven wires to the primary side. The firing order is set by the computer, which receives input from a crank angle sensor and then outputs a signal to the Leading or Trailing coil to fire. See Fig 1 for the location of the Leading and Trailing set of Spark Plugs.