Kia Sorento: Signal Waveform - Injector - Engine Control System - Engine Control / Fuel System - Kia Sorento XM 2011-2024 Service ManualKia Sorento: Signal Waveform

Second Generation XM (2011-2024) / Kia Sorento XM 2011-2024 Service Manual / Engine Control / Fuel System / Engine Control System / Injector / Signal Waveform

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.

Specification
Item Specification Coil Resistance (Ω) 1.18 ~ 1.31 [20°C(68°F)] ...

Circuit Diagram
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See also:

Start/Stop Button Removal
1. Disconnect the negative(-) battery terminal. 2. Remove the crash pad lower panel (A). (Refer to Body - "Crash pad") ...

Auto Defogging Sensor Inspection
To inspect and diagnose the sensor, refer to Self-Diagnosis procedure and DTC guide. ...

Fuel Tank Removal
1. Release the residual pressure in fuel line. (Refer to the Fuel Delivery System - Repair Procedures - "Release Residual Pressure in Fuel Line") ...

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