Fuel injector (FP2, RF2) control

Terminal connected:
FP2: 3A (+)-Negative battery terminal

RP2: 3D (+)-Negative battery terminal
Oscilloscope setting: 5 V/DIV (Y): 5 ms/DIV (X), DC range
Measurement condition: Racing after warm-up (no load)

Fig 1: Identifying Fuel Injector (FP2, RF2) Control Graph
Courtesy of MAZDA MOTORS CORP.