Fuel injection (#1, #2, #3, #4) control

Fig 1: Fuel Injection (1, 2, 3, 4) Control Voltage Signal Waveform

PCM terminals 

• Fuel Injection No.1: 2BB(+)-body ground(-)
• Fuel Injection No.2: 2BC(+)-body ground(-)
• Fuel Injection No.3: 2BD(+)-body ground(-)
• Fuel Injection No.4: 2AZ(+)-body ground(-)

  Oscilloscope setting 

• 10 V/DIV (Y), 20 ms/DIV (X), DC range

  Vehicle condition 

• idle (after warm up)