Kia Sportage: Engine Control System / Injector Description and operation
The GDI injector is similar to a standard injector, but sprays fuel at a much
higher pressure directly into the combustion chamber and has a swirl disc to
get the fuel swirling as it exits the nozzle. This aids in atomization of the
fuel.
The ECM controls both the feed circuits (high side) to feed voltage to the injectors
and the ground circuits (low side) to energize the injectors. Also, the feed
for 2 injectors comes from the same driver set. As the ignition coils are paired
with cylinders (1-4 and 2-3), the injectors are also set up in pairs.

Specification
Item
Specification
Coil Resistance (Ω)
1.18 - 1.31 [20°C(68°F)]
...
Circuit Diagram
Harness Connector
...
Other information:
✽ NOTICE
If the DBC red indicator light illuminates, the system may have overheated
or have malfunctioned. When the warning light illuminates even though the DBC system
has cooled off, we recommend that the vehicle be checked by an authorized Kia dealer
as soon as possible.
✽ NOTICE
...
Signal Waveform
Service data review releated with fuel pressure sensor at idle and acceleration.
(Inspect low pressure fuel line between fuel pump and high pressure pump first
when the pressure of low pressure line is displayed low at idle.)
A : Idle
B : Accele ...