Kia Sportage: 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.

Inspection
1.
Turn the ignition switch OFF.
2.
Disconnect the injector connector.
3.
Measure resistance b ...
Specification
Item
Specification
Coil Resistance (Ω)
22.0 - 26.0 [20°C(68°F)]
...
Other information:
Removal and Installation
1.
Drain the coolant.
(Refer to Cooling System - "Coolant")
2.
Remove the drive belt after turning the drive belt tensioner counterclockwise.
(Refer to Timing System - "Drive ...
Removal
1.
Remove the RH front wheel.
(Refer to Suspension System - "Wheel")
2.
Remove the engine room under cover.
(Refer to Engine and Transaxle Assembly - "Engine Room Under Cover")
...