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 Service Manual: Components and components location
Component Location   1. Door lock switch 2. SJB (Smart Junction Box) 3. BCM (Body Control Module) 4. Front door lock actuator 5. Rear door lock actuator 6. Tailgate open actuator ...

Kia Cee'd JD Owners Manual: Air intake control
This is used to select the outside (fresh) air position or recirculated air position. To change the air intake control position, push the control button. Recirculated air position With the recirculated air position selected, air from the passenger compartment will be drawn through ...