Kia Niro: Engine Control System / Injector Troubleshooting

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.

Injector Repair procedures
Inspection 1. Switch "OFF" the ignition. 2. Disconnect the injector connector. 3. Measure resistance between t ...

Purge Control Solenoid Valve (PCSV) Specifications
Specification Item Specification Coil Resistance (Ω) 14.3 - 14.7 [20°C(68°F)] Rated Voltage (V) 13 ...

Other information:

Kia Niro (DE HEV) Owners Manual: Non-operational conditions of parking assist system
Parking assist system may not operate normally when: 1. Moisture is frozen to the sensor. (It will operate normally when moisture melts.) 2. Sensor is covered with foreign matter, such as snow or water, or the sensor cover is blocked. (It will operate normally when the material is removed or t ...

Kia Niro 2017 (DE HEV) Service Manual: AVN Remote Controller Components and components location
Components 1. Left Remote Control Switch (Audio + Hands free + Voice) 2. Right Remote Control Switch (Cruise+Trip Computer) ...

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