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), 20 ms/DIV (X), DC range

Vehicle condition
- Idle after warm up (no load, P/S off, A/C off)

FUEL INJECTION CONTROL (+)




PCM terminals
- Fuel injection No.1, No.4: 2BG (+) - body ground (-)
- Fuel injection No.2, No.3: 2BH (+) - body ground (-)

Oscilloscope setting
- 20 V/DIV (Y), 400 micro seconds/DIV (X), DC range

Vehicle condition
- Idle after warm up (no load, P/S off, A/C off)