MARUTI SUZUKI Wagon R, Руководство пользователя

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1A-29 Engine General Information and Diagnosis: Bi-Fuel LPG model
Scan Tool Data
AENAR90A1104008
As the data values are standard values estimated on the basis of values obtained from the normally operating vehicles
by using a scan tool, use them as reference values. Even when the vehicle is in good condition, there may be cases
where the checked value does not fall within each specified data range. Therefore, judgment as abnormal should not
be made by checking with these data alone.
Also, conditions that can be checked by the scan tool are those detected by ECM and output from ECM as commands
and there may be cases where the engine or actuator is not operating (in the condition) as indicated by the scan tool.
Be sure to use the timing light to check the ignition timing. Refer to “Ignition Timing Inspection”: in Section .
NOTE
When checking the data with the engine running at idle or racing, be sure to place gear shift lever in
“Neutral” and pull the parking brake fully.
P0607
)
Control Module Performance
LPG control module stops LPG control and then shifts
operating mode to “Petrol MODE”.
P0612
)
Fuel Injector Control Module Relay Control —
P062F
)
Internal Control Module EEPROM Error —
P1432
)
Remaining Fuel Sensor Low Voltage LPG control module stops LPG residual quantity
indication.
P1433
)
Remaining Fuel Sensor High Voltage
P1601
)
Monitor Circuit Fault
LPG control module stops LPG control and then shifts
operating mode to “Petrol MODE”.
P2665 ) Fuel Shutoff Valve “B” Control Circuit/Open • LPG control module closes shut off valve of LPG
pressure regulator.
• LPG control module stops LPG control and then shifts
operating mode to “Petrol MODE”.
P2667 ) Fuel Shutoff Valve “B” Control Circuit High
P2668 ) Fuel Mode Indicator Lamp Control Circuit —
U0073 ) Control Module Communication Bus Off LPG control module stops LPG control and then shifts
operating mode to “Petrol MODE”.
U0100 ) Lost Communication with ECM
DTC DTC name Fail-safe operation
Scan tool data Vehicle condition
Normal condition /
reference value
CNG/LPG Temperature )
• Engine condition: Idle speed after warming up
• Fuel select mode: Forced LPG MODE
–5 °C (–9 °F) +
environmental temperature
to 40 °C (72 °F) +
environmental temperature
CNG/LPG Pressure ) • Engine condition: Idle speed after warming up
• Fuel select mode: Forced LPG MODE
Approx. 80 to 140 kPa
Fuel System )
Open-loop has not yet satisfied engine conditions (ECT > 20
°C, IAT, TP sensor / system = OK) to go closed loop
OL (open loop)
Open-loop due to driving conditions (Power enrichment,
etc.)
OL-Drive (open loop)
Open-loop due to detected system fault OL-Fault (open loop)
Closed-loop using HO2S as feedback for fuel control CL (closed loop)
When engine stops with ignition switch ON —
Short Term Fuel Trim ) Specified idle speed for 2 min. after warming up Approx. –10 to 10%
Long Term Fuel Trim ) Specified idle speed for 2 min. after warming up Approx. –15 to 15%
Total Fuel Trim ) Specified idle speed for 2 min. after warming up Approx. –25 to 25%
Inj Pulse Width )
• Engine condition: Specified idle speed with no load after
warming up
• Fuel select mode: Petrol MODE
Approx. 1.5 to 4.5 msec
• Engine condition: Specified idle speed with no load after
warming up
• Fuel select mode: Forced LPG MODE
Approx. 1.5 to 4.5 msec