Kia Carens: 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 [20°C(68°F)] ...

Injector Schematic diagrams

Circuit Diagram (M/T) (A/T) ...

Other information:

Kia Carens RP (2013-2018) Service Manual: Spark Plug Repair procedures

Inspection [On vehicle inspection] 1. Accelerate the engine to about 3,000 rpm 3 times or more. 2. Remove the spark plug. 3. Check the spark plug visually. If the electrode is dry, th ...

Kia Carens RP (2013-2018) Service Manual: Schematic diagrams

Schematic Diagram 1. CAN 2. MIL lamp 3. Immobilizer 4. Canister 5. Purge control solenoid valve 6. Manifold absolute pressure sensor 7. Throttle position sensor (ETC module included) 8. ETC motor 9. Injector 10. Knock sensor 11. Ig ...