Oscilloscope Patterns and Waveforms

Fuel injection signals




- PCM terminals
- Fuel Injection No.1: 2BB (+)-Negative battery terminal (-)
- Fuel Injection No.2: 2BC (+)-Negative battery terminal (-)
- Fuel Injection No.3: 2BD (+)-Negative battery terminal (-)
- Fuel Injection No.4: 2AZ (+)-Negative battery terminal (-)

- Oscilloscope setting: 10 V/DIV (Y), 10 minutes/DIV (X), DC range
- Vehicle condition: Idle after warm-up