Kia Rio: 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.

Specification

Item Specification Coil Resistance (Ω) 1.5 [20°C(68°F)] ...

Circuit Diagram

(M/T) (A/T) ...

See also:

Heater & A/C Control Unit (FATC) Components
Connector Pin Function Connector Pin No Function Connector Pin No Function A 1 IGN 2 B 17 HI-SCAN (K-L ...

General Service Information
Protection Of The Vehicle Always be sure to cover fenders, seats, and floor areas before starting work.    The s ...

Interior Trim Components
[5 Door, 4 Door] 1 . Front pillar trim 2 . Center pillar upper trim 3 . Center pillar lower trim 4 . Rear pillar trim [5 Door] 5 . Front door scuff trim 6 . ...