Suzuki Wagon R Plus RB310 - Page 225

6-2-50 ENGINE GENERAL INFORMATION AND DIAGNOSIS (M13 ENGINE)
20. Reference waveform No.20
Manifold absolute pressure sensor signal at engine racing
21. Reference waveform No.21
VSS signal at 30 km/h (19 mil/h)
22. Reference waveform No.22
Ignition pulse (engine revolution) signal at engine idling
Measurement
terminal
CH1: E22-15 to E22-28
CH2: E22-34 to E22-28
Oscilloscope
setting
CH1: 2 V/DIV, CH2: 2 V/DIV
TIME: 200 ms/DIV
Measurement
condition
• After warmed up to normal operating
temperature
• Engine racing
1.
Manifold absolute pressure sensor signal
2. Throttle position sensor signal
Measurement
terminal
CH1: E21-31 to E23-1
CH2: E22-19 to E23-1
Oscilloscope
setting
CH1: 5 V/DIV, CH2: 5 V/DIV
TIME: 40 ms/DIV
Measurement
condition
• After warmed up to normal operating
temperature
• Drive vehicle at 30 km/h (19 mil/h)
1.
VSS signal for speedometer
2.
VSS signal
Measurement
terminal
CH1: E22-10 to E23-1
CH2: E21-12 to E23-1
Oscilloscope
setting
CH1: 5 V/DIV, CH2: 5 V/DIV
TIME: 40 ms/DIV
Measurement
condition
• After warmed up to normal operating
temperature
• Engine at specified idle speed
1. Cylinder reference signal (CMP reference signal)
2.
Ignition pulse signal