Kia Cee'd: Engine Control System / Injector Troubleshooting

The three waveforms below are taken from the #1 and #4 injectors. The top waveform is from the high side (feed side) of the #1 and #4 injectors, while the middle waveform is from the low side (ground side) of the #1 injector and the bottom waveform is from the low side of the #4 injector.

The middle waveform is the same as the top waveform because there is no ground for the circuit. With no current flowing in the circuit, the #1 injector is not energized and fuel does not flow.

The bottom waveform shows that ground is supplied and there is a voltage drop across the #4 injector. With current flowing in the circuit, the #4 injector is energized and fuel flows.

Injector Specifications

Specification   Item Specification Coil Resistance (Ω) 1.5 ± 5％[20°C(68°F)] ...

Injector Schematic diagrams

Circuit Diagram ...

Other information:

Kia Cee'd JD Owners Manual: Engine compartment precautions (Diesel engine)
The injector operates at high voltage (maximum 200v). Therefore, the following accidents may occur. - Direct contact with the injector or injector wiring may cause electric shock or damage your muscle or nerve system. - The electromagnetic wave from the operating injector ma ...

: Storing Your Vehicle
Preparing Your Vehicle for Storage If you plan on storing your vehicle for 30 days or more, the following maintenance recommendations ensures your vehicle stays in good operating condition. Under various conditions, long-term storage may lead to degraded engine performance or failure unless you ...