Engine General Information and Diagnosis: Bi-Fuel LPG model 1A-78
Reference waveform
NOTE
• Waveform analysis is as follows.
• Waveform might change for measurement
condition and vehicle spec.
Petrol fuel injector signal
Petrol fuel injector control signal (1):
Measurement condition
• Engine: Idle speed after warming up
• Fuel select mode: Petrol MODE
LPG fuel injector signal
Fuel injector control signal from ECM (1):
LPG fuel injector control signal (2):
Measurement condition
• Engine: Idle speed after warming up
• Fuel select mode: Forced LPG MODE
Petrol fuel injector signal and LPG fuel injector
signal
Fuel injector control signal from ECM (1):
LPG fuel injector control signal (2):
E485-34
BLU/BLK
Shut off valve of LPG
tank valve control
circuit
0 – 1 V
Ignition switch: ON
10 – 15 V
Engine: Running
Fuel select mode: Petrol
MODE
0 – 1 V
Engine: Running
Fuel select mode: Forced
LPG MODE
Terminal No.
Wire color
Circuit
Normal voltage
Condition
[A]: Waveform of channel 1
[C]: VOLT/DIV of each channel
[B]: Ground level of each channel
[D]: TIME/DIV
Channel
Probe
Terminal No.
1
+
C13-6 (No.1)
C13-14 (No.2)
C13-5 (No.3)
–
C13-9
I8T401111066-01
I7V20A111014-02
Channel
Probe
Terminal No.
1
+
C13-8 (No.1)
C13-16 (No.2)
C13-7 (No.3)
–
C13-9
Channel
Probe
Terminal No.
2
+
C13-1 (No.1)
C13-10 (No.2)
C13-18 (No.3)
–
C13-9
Channel
Probe
Terminal No.
1
+
C13-8 (No.1)
C13-16 (No.2)
C13-7 (No.3)
–
C13-9
Channel
Probe
Terminal No.
2
+
C13-1 (No.1)
C13-10 (No.2)
C13-18 (No.3)
–
C13-9
IAR90A110037-01
Содержание Wagon R
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