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: Seat belt precautions
WARNING All occupants of the vehicle must wear their seat belts at all times. Seat belts and child restraints reduce the risk of serious or fatal injuries for all occupants in the event of a collision or sudden stop. Without a seat belt, occupants could be shifted too close to a dep ...

Kia Cee'd JD Service Manual: Evaporator Core Repair procedures
Replacement 1. Disconnect the negative (-) battery terminal. 2. Remove the heater & blower assembly. (Refer to Heater - "Heater Unit") 3. Separate the blower unit from the heater un ...