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13B-255
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V13
DIESEL INJECTION
Fault finding – Interpretation of parameters
EDC16
Program No: C1
Vdiag No: 18, 1C, 20,
50, 58, 5C
13B
PR132
AIR FLOW
PARAMETER
DEFINITIONThis parameter indicates the inlet air flow in kg/h.
NOTESSpecial notes:
Only perform these tests if the parameters do not correspond with the system
operation programming.
No faults must be present.
Perform this fault finding procedure:
– after finding an inconsistency in the parameter,
– or after a customer complaint (lack of power, smoke etc.).
Conformity check with engine stopped and ignition on.
Indicates the inlet air flow in kg/h.
The value should be between:
0 kg/h < PR132 < 10 kg/h.
In the event of a fault, refer to the interpretation of DF056 Air flow sensor circuit.
Conformity check with engine running, engine coolant temperature > 80°C.
Indicates the inlet air flow in kg/h.
The value should be between:
Approximately 30 kg/h
In the event of a fault, refer to the interpretation of DF056 Air flow sensor circuit.
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
EDC16_V50_PR132/EDC16_V58_PR132/EDC16_V5C_PR132/EDC16_V18_PR132/EDC16_V1C_PR132/EDC16_V20_PR132
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13B-257
MR-372-J84-13B200$648.mif
V13
DIESEL INJECTION
Fault finding – Interpretation of parameters
EDC16
Program No: C1
Vdiag No: 18, 1C, 20,
50, 58, 5C
13B
PR146
INLET AIR FLOW
PARAMETER
DEFINITIONThis parameter indicates the flow of air entering the engine in mg/st.
NOTESSpecial notes:
Only perform these tests if the parameters do not correspond with the system
operation programming.
Conformity check with engine stopped and ignition on.
This parameter indicates the flow of air entering the engine in mg/st.
0 mg/st
In the event of a fault, consult the interpretation of parameter DF056 Air flow sensor circuit.
Engine running, engine coolant temperature > 80°C.
This parameter indicates the flow of air entering the engine in mg/st.
In the event of a fault, consult the interpretation of parameter DF056 Air flow sensor circuit.
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
EDC16_V50_PR146/EDC16_V58_PR146/EDC16_V5C_PR146/EDC16_V18_PR146/EDC16_V1C_PR146/EDC16_V20_PR146
Page 258 of 365
13B-258
MR-372-J84-13B200$648.mif
V13
DIESEL INJECTION
Fault finding – Interpretation of parameters
EDC16
Program No: C1
Vdiag No: 18, 1C, 20,
50, 58, 5C
13B
PR147
PEDAL POTENTIOMETER GANG 1 VOLTAGE
PARAMETER
DEFINITIONThis parameter indicates the pedal potentiometer gang 1 voltage in volts.
NOTESSpecial notes:
Only perform these tests if the parameters do not correspond with the system
operation programming.
Conformity check with engine stopped and ignition on, or engine running, and engine coolant temperature
>80 °C.
Accelerator pedal released: 0.70 V < PR147 < 0.80 V
In the event of a fault, refer to the interpretation of DF008 Pedal potentiometer circuit gang 1 or DF009 Pedal
potentiometer circuit gang 2.
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
EDC16_V50_PR147/EDC16_V58_PR147/EDC16_V5C_PR147/EDC16_V18_PR147/EDC16_V1C_PR147/EDC16_V20_PR147
Page 259 of 365
13B-259
MR-372-J84-13B200$648.mif
V13
DIESEL INJECTION
Fault finding – Interpretation of parameters
EDC16
Program No: C1
Vdiag No: 18, 1C, 20,
50, 58, 5C
13B
PR148
PEDAL POTENTIOMETER GANG 2 VOLTAGE
PARAMETER
DEFINITIONThis parameter indicates the pedal potentiometer gang 2 voltage in volts.
NOTESSpecial notes:
Only perform these tests if the parameters do not correspond with the system
operation programming.
Conformity check with engine stopped and ignition on, or engine running, and engine coolant temperature
>80 °C.
Accelerator pedal released: 0.35 V < PR148 < 0.40 V
In the event of a fault, refer to the interpretation of DF008 Pedal potentiometer circuit gang 1 or DF009 Pedal
potentiometer circuit gang 2.
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
EDC16_V50_PR148/EDC16_V58_PR148/EDC16_V5C_PR148/EDC16_V18_PR148/EDC16_V1C_PR148/EDC16_V20_PR148
Page 260 of 365
13B-260
MR-372-J84-13B200$648.mif
V13
DIESEL INJECTION
Fault finding – Interpretation of parameters
EDC16
Program No: C1
Vdiag No: 18, 1C, 20,
50, 58, 5C
13B
PR157
FUEL FLOW SETPOINT
PARAMETER
DEFINITIONThis parameter indicates the fuel flow setpoint in mg/st.
NOTESSpecial notes:
Only perform these tests if the parameters do not correspond with the system
operation programming.
Conformity check with engine stopped and ignition on.
Ignition on: 0 < PR157 < 60 mg/st
Conformity check with engine running, engine coolant temperature > 80°C.
Engine running: PR017: Fuel flow = PR157.
AFTER REPAIRCarry out a road test followed by a check with the diagnostic tool.
EDC16_V50_PR157/EDC16_V58_PR157/EDC16_V5C_PR157/EDC16_V18_PR157/EDC16_V1C_PR157/EDC16_V20_PR157
Page 261 of 365
13B-261
MR-372-J84-13B200$648.mif
V13
DIESEL INJECTION
Fault finding – Interpretation of parameters
EDC16
Program No: C1
Vdiag No: 18, 1C, 20,
50, 58, 5C
13B
PR171
AIR FLOW SETPOINT FOR EGR
PARAMETER
DEFINITIONThis parameter indicates the flow of air required by the EGR valve in mg/st.
NOTESSpecial notes:
Only perform these tests if the parameters do not correspond with the system
operation programming.
Conformity check with engine stopped and ignition on, or engine running, and engine coolant temperature
>80 °C.
Indicates the air flow required by the EGR valve
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
EDC16_V50_PR171/EDC16_V58_PR171/EDC16_V5C_PR171/EDC16_V18_PR171/EDC16_V1C_PR171/EDC16_V20_PR171
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13B-262
MR-372-J84-13B200$648.mif
V13
DIESEL INJECTION
Fault finding – Interpretation of parameters
EDC16
Program No: C1
Vdiag No: 18, 1C, 20,
50, 58, 5C
13B
PR190
IDLE SPEED SETPOINT
PARAMETER
DEFINITIONThis parameter indicates the engine's rotational speed in rpm.
NOTESSpecial notes:
Only perform these tests if the parameters do not correspond with the system
operation programming.
Conformity check with engine stopped and ignition on.
With the ignition on the value is 0 rpm.
In the event of a fault, refer to the interpretation of fault DF005 Engine speed sensor circuit.
Conformity check with engine running, engine coolant temperature > 80°C.
With the engine running at idle speed, the value is approximately 800 rpm.
In the event of a fault, refer to the interpretation of fault DF005 Engine speed sensor circuit.
The difference between the idle speed and its setpoint should be less than 50 rpm.
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
EDC16_V50_PR190/EDC16_V58_PR190/EDC16_V5C_PR190/EDC16_V18_PR190/EDC16_V1C_PR190/EDC16_V20_PR190
Page 263 of 365
13B-263
MR-372-J84-13B200$648.mif
V13
DIESEL INJECTION
Fault finding – Interpretation of parameters
EDC16
Program No: C1
Vdiag No: 18, 1C, 20,
50, 58, 5C
13B
PR209
TURBOCHARGING PRESSURE LOOP DIFFERENCE
PARAMETER
DEFINITIONThis parameter indicates the turbocharging pressure loop difference in bar.
NOTESSpecial notes:
Only perform these tests if the parameters do not correspond with the system
operation programming.
Conformity check with engine running, engine coolant temperature > 80°C.
PR209 = PR009 Turbocharging pressure setpoint – PR041 Turbocharging pressure = ~ 0 bar
If PR209 is significant, apply the interpretation of command AC004 Turbocharging solenoid valve.
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
EDC16_V50_PR209/EDC16_V58_PR209/EDC16_V5C_PR209/EDC16_V18_PR209/EDC16_V1C_PR209/EDC16_V20_PR209