Page 305 of 431
13B-305V9 MR-372-J84-13B450$152.mif
13B
PR129LAST EGR VALVE OFFSET
PARAMETER
DEFINITIONThis parameter indicates the EGR valve closing ratio for the last EGR valve offset.
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 percentage ≈ 20%.
PR128 First EGR valve offset ≈ PR129, these 2 values should be similar.
In the event of a fault, see the interpretation of faults DF209 EGR valve position sensor circuit and DF647 EGR
valve position regulation.
EDC16C36_V44_PR129/EDC16C36_V4C_PR129/EDC16C36_V48_PR129/EDC16C36_V50_PR129/EDC16C36_V54_PR129/
EDC16C36_V58_PR129
DIESEL INJECTION
Fault finding – Interpretation of parameters
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58
Page 307 of 431
13B-307V9 MR-372-J84-13B450$152.mif
DIESEL INJECTION
Fault finding – Interpretation of parameters13B
PR131EGR AIR FLOW DIFFERENCE
PARAMETER
DEFINITIONThis parameter indicates the EGR air flow difference.
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
PR131 = PR146 – PR171
The value must be very close to 0.
In the event of a fault, consult the interpretation of fault DF056 Air flow sensor circuit.
EDC16C36_V44_PR131/EDC16C36_V4C_PR131/EDC16C36_V48_PR131/EDC16C36_V50_PR131/EDC16C36_V54_PR131/
EDC16C36_V58_PR131
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58
Page 309 of 431

13B-309V9 MR-372-J84-13B450$152.mif
DIESEL INJECTION
Fault finding – Interpretation of parameters13B
PR132
CONTINUED
Sensor electrical conformity
Test the air inlet circuit (from the air filter inlet to the inlet manifold,
apply test 4 Turbocharged air inlet circuit check):
– air filter unit inlet not blocked and filter not clogged,
–visual inspection only, run test 4 of ALP2: Starting fault or starting impossible,
– oil vapour recirculation circuit connection conformity.
–absence of leaks or blockages in the low and high pressure air circuits: pipes, presence and tightness of the
mounting clips, mounting of the turbocharger pressure sensor, intercooler, etc.,
– check that the damper valve is not jammed closed.
Carry out the necessary repairs.
Check the electrical conformity of the air flowmeter:
Check the + 5 V feed to the air flowmeter.
– connection 3KJ of component 799.
Check the +12 V after relay feed to the air flowmeter.
– connection 3FB of component 799.
Check for continuity and absence of interference resistance of the following connections:
– connection code3DV,
– connection code3DW,
between components 120 and 799.
With the flowmeter connected, the vehicle ignition on and engine stopped:
Check the voltage between connections 3DW and 3DV of component 799.
– If the voltage is not approximately 0.6 V ± 0.1 V, replace the air flowmeter.
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58
Page 310 of 431

13B-310V9 MR-372-J84-13B450$152.mif
DIESEL INJECTION
Fault finding – Interpretation of parameters13B
PR146INLET 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 fault DF056 Air flow sensor circuit.
EDC16C36_V44_PR146/EDC16C36_V4C_PR146/EDC16C36_V48_PR146/EDC16C36_V50_PR146/EDC16C36_V54_PR146/
EDC16C36_V58_PR146
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58
Page 313 of 431

13B-313V9 MR-372-J84-13B450$152.mif
DIESEL INJECTION
Fault finding – Interpretation of parameters13B
PR190IDLE 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 faults DF195 Camshaft sensor/engine speed consistency,
DF119 Camshaft sensor signal and DF120 Engine speed sensor signal.
Conformity check with engine running, engine coolant temperature > 80°C
With the engine idling, the value is approximately 800 rpm
In the event of a fault, refer to the interpretation of faults DF195 Camshaft sensor/engine speed consistency,
DF119 Camshaft sensor signal and DF120 Engine speed sensor signal.
The difference between the engine idle speed and its setpoint must be less than 50 rpm.
EDC16C36_V44_PR190/EDC16C36_V4C_PR190/EDC16C36_V48_PR190/EDC16C36_V50_PR190/EDC16C36_V54_PR190/
EDC16C36_V58_PR190
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58
Page 315 of 431
13B-315V9 MR-372-J84-13B450$152.mif
DIESEL INJECTION
Fault finding – Interpretation of parameters13B
PR213RAIL 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 stopped and ignition on, or engine running, and engine coolant temperature
> 80°C
PR213 = PR008 – PR038
In the event of a fault, consult the interpretation of fault DF007 Rail pressure sensor circuit.
EDC16C36_V44_PR213/EDC16C36_V4C_PR213/EDC16C36_V48_PR213/EDC16C36_V50_PR213/EDC16C36_V54_PR213/
EDC16C36_V58_PR213
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58
Page 316 of 431
13B-316V9 MR-372-J84-13B450$152.mif
DIESEL INJECTION
Fault finding – Interpretation of parameters13B
PR224TURBOCHARGING PRESSURE SENSOR VOLTAGE
PARAMETER
DEFINITIONThis parameter indicates the turbocharging pressure sensor 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
0 V < PR224 < 5 V
In the event of a fault, refer to the interpretation of faults DF011 Sensor supply voltage no. 1, DF012 Sensor
supply voltage no. 2, and DF013 Sensor supply voltage no. 3.
EDC16C36_V44_PR224/EDC16C36_V4C_PR224/EDC16C36_V48_PR224/EDC16C36_V50_PR224/EDC16C36_V54_PR224/
EDC16C36_V58_PR224
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58
Page 317 of 431
13B-317V9 MR-372-J84-13B450$152.mif
DIESEL INJECTION
Fault finding – Interpretation of parameters13B
PR358SENSOR REFERENCE VOLTAGE
PARAMETER
DEFINITIONThis parameter indicates the reference voltage of the sensors 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
The sensor reference voltage must be between 3.4 V < PR358 < 3.8 V
EDC16C36_V44_PR358/EDC16C36_V4C_PR358/EDC16C36_V48_PR358/EDC16C36_V50_PR358/EDC16C36_V54_PR358/
EDC16C36_V58_PR358
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58