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 2017 (DE HEV) Service Manual: Repair procedures
Adjustment 1. After loosening the hinge (A) mounting bolts, adjust the hood (B) by moving it up and down, or right and left. 2. Adjust the hood height by turning the hood overslam bumpers (C). 3. After loosening the ...

Kia Niro 2017 (DE HEV) Service Manual: Repair procedures
Adjustment Inspect Glass Alignment 1. Inspect the step height between the roof panel (A) and the glass weatherstrip (B) and then adjust it if necessary. Alignment adjustment Standard value [mm(in.)] (1) Front edge : 0 mm (0 in.) ...

© 2016-2019 www.kniro.net