Fuel Injector

Fuel Injector Electrical Specifications.

- Voltage is 12 volts when injector is not active.
- Resistance (approximately 12 ohms)
- Power Supply (B+ from Main Relay)
- Status Request - Fuel Injection Signal (approximately 3.0 ms - 5.0 ms)
- EMS2000 final stage activation (see graph)


- Measurement is performed on the negative B- side of injector or trigger pin of EMS2000.
- EMS2000 pulls voltage to ground causing injector to open.
- When EMS2000 releases ground, injector closes and voltage spikes due to induced voltage in coil winding.