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 ms/DIV (X), DC range

Vehicle condition
- Idle after warm up (engine speed approx. 650 rpm, no load)