Oscilloscope Patterns and Waveforms

Fuel injection control




- 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), 25 minutes/DIV (X), DC range
- Vehicle condition: Idle after warm up (engine speed approx. 650 rpm, no load)