1A-31 Engine General Information and Diagnosis: Bi-Fuel LPG model
Scan Tool Data Definitions
CNG/LPG Temperature (°C, °F)
This parameter indicates the calculated LPG
temperature based on LPG pressure-and-temperature
sensor signal.
CNG/LPG Pressure (kPa)
This parameter indicates the calculated LPG pressure in
LPG fuel delivery pipe based on LPG pressure-and-
temperature sensor signal.
Fuel System (Fuel System Status)
This parameter indicates A/F ratio feedback loop status
displayed as one of the following.
OL: Open-loop has not yet satisfied engine conditions
(ECT > 20 °C, IAT, TP sensor / system = OK) to go
closed loop
OL-DRIVE: Open-loop due to driving conditions (Power
enrichment, etc.)
OL-FAULT: Open-loop due to detected system fault
CL: Closed-loop using oxygen sensor(s) as feedback for
fuel control
Short Term Fuel Trim (%)
This parameter indicates the short term corrections of
the air / fuel mixture computation.
0%: No correction
Above 0%: Enrichment correction
Below 0%: Lean mixture correction
Long Term Fuel Trim (%)
This parameter indicates the long term corrections of the
air / fuel mixture computation.
0%: No correction
Above 0%: Enrichment correction
Below 0%: Lean mixture correction
Total Fuel Trim (%)
This parameter indicates the calculated total fuel trim
value based on values of short term fuel trim and long
term fuel trim.
0%: No correction
Above 0%: Enrichment correction
Below 0%: Lean mixture correction
• Engine condition: Specified idle speed with no load after
warming up
• Fuel select mode: Petrol MODE
0 msec
• Engine condition: Specified idle speed with no load after
warming up
• Fuel select mode: Forced LPG MODE
Approx. 3.5 – 5.5 msec
Fuel Select Mode
Fuel select mode: AUTO MODE
Auto
Fuel select mode: Petrol MODE
Petrol
Fuel select mode: Forced LPG MODE
Gas
Radiator Fan
Radiator cooling fan: ON
ON
Other than above condition
OFF
A/C Comp Relay
A/C switch and blower motor switch turned ON
ON
Other than above condition
OFF
Fuel Pump
Engine running
ON
Other than above condition
OFF
Ignition switch: ST position (engine cranking)
ON
Other than above condition
OFF
A/C Switch
A/C switch: ON
ON
Other than above condition
OFF
Brake Switch
Brake pedal: Depressed fully
ON
Brake pedal: Released
OFF
Head light switch or rear defogger switch: ON
ON
Head light switch or rear defogger switch: OFF
OFF
Fuel Cut
Specified idle speed after warming up
OFF
• Accelerator pedal: Released
• Engine condition: 2,000 rpm or more after warming up
ON
Closed Throttle Pos
• Engine condition: Stopped
• Accelerator pedal: Released
ON
• Engine condition: Stopped
• Accelerator pedal: Depressed fully
OFF
Specified idle speed after warming up
Active
Scan tool data
Vehicle condition
Normal condition /
reference value
Содержание Wagon R
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