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: Intake Actuator Components and components location
Components Location
1. Intake actuator
...
Kia Niro 2017 (DE HEV) Service Manual: Repair procedures
General Inspection
Before and after servicing the EPS system, perform the troubleshooting and
test procedure as follows.
Compare the system condition with normal condition in the table below and
if abnormal symptom is detected, perform necessary remedy and inspe ...
