Kia Sorento: 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:

Inspection
1. Connect the GDS on the Data Link Connector (DLC). 2. Measure the output voltage of the MAPS at idle and IG ON. Spe ...

ESC Control Module Removal
1. Turn the ignition switch OFF. 2. Remove the surge tank. [G3.3 GDI] (Refer to Engine Mechanical System - "Surge Tank") ...

Direct Electro Hydraulic Actuator Coupling Installation
1. Install in the reverse order of removal.    • ...