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: User Settings
In this mode there are 3 kinds of the submenu. WARNING Do not adjust the User Setting while driving. You may lose your steering control and cause severe personal injury or accidents. 1. Stop the vehicle with the ignition switch in the ON position or engine running. 2. Press the ▲ ...

Kia Cee'd JD Service Manual: Intake Air Temperature Sensor (IATS) Specifications
Specification   Temperature Resistance (kΩ) °C °F -40 -40 40.93 ~ 48.35 -20 -4 13.89 ~ 16.03 0 32 ...