Suzuki SX4 Service Manual page 232

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1A-182 Engine General Information and Diagnosis:
Reference waveform No.1
Fuel injector signal (1) with engine idling
Measurement
CH1: "C01-2" to "C01-58"
terminal
Oscilloscope
CH1: 20 V/DIV
setting
TIME: 1 ms/DIV
• After warmed up to normal
Measurement
operating temperature
condition
• Engine at specified idle speed
2. Fuel injection pulse width: 2-4 msec.
Reference waveform No.2
No.1 fuel injector signal (2) with engine idling
Measurement
terminal
Oscilloscope
setting
Measurement
condition
I4RS0B110050-01
3. 10 – 14 V
CH1: "C01-20" to "C01-58"
CH2: "C01-1" to "C01-58"
CH1: 5 V/DIV, CH2: 20 V/DIV
TIME: 40 ms/DIV
• After warmed up to normal
operating temperature
• Engine at specified idle speed
[A]: For VVT model
[B]: For non-VVT model
1. Cylinder reference signal (CMP reference signal)
3. 720° crank angle
I4RS0B110051-01

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