Page 117 of 279

17B-117
AFTER REPAIRDeal with any faults displayed by the diagnostic tool.
Clear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.
V2 MR-376-X76-17B050$083.mif
PETROL INJECTION
Fault finding – Interpretation of faults17B
V42 Injection
Program No.: 2A
Vdiag No.: 18
DF639
PRESENT OR
STOREDCOMBUSTION MISFIRE IN LPG MODE1.DEF: Polluting misfiring.
2.DEF: Destructive misfiring.
NOTESPriority when dealing with a number of faults:
– DF109 Low fuel level misfire,
– DF635 LPG cylinder 1 combustion misfire,
– DF636 LPG cylinder 2 combustion misfire,
– DF637 LPG cylinder 3 combustion misfire
– DF638 LPG cylinder 4 combustion misfire.
Conditions for applying the fault finding procedure to stored faults:
The fault is considered present under the following conditions:
– engine running at idling speed.
Special note:
OBD warning light comes on.
1.DEF
NOTESNone.
Check the ignition coil circuits (see MR 388, Mechanical, 17A, Ignition, Ignition: Specifications),
Check the fuel supply circuit (see MR 388 (Logan and Sandero), MR 451 (Duster) or MR 423 (Thalia 2/Symbol
2), Mechanical, 13A, Fuel supply, Fuel circuit: Operating diagram),
Check the fuel supply pump circuit (see MR 388 (Logan and Sandero), MR 451 (Duster) or MR 423 (Thalia 2/
Symbol 2), Mechanical, 13A, Fuel supply, Fuel circuit: Operating diagram),
Check the condition of the cylinder injectors (see MR 388 (Logan and Sandero), Mechanical, 13A, Fuel supply,
Injector rail - Injectors: Removal - Refitting, MR 451 (Duster) or MR 423 (Thalia 2/Symbol 2), Mechanical,
17B, Petrol injection, Injector rail - Injectors: Removal - Refitting),
Check the cylinder compressions.
V42_V18_DF639
Page 139 of 279

17B-139
AFTER REPAIRDeal with any faults displayed by the diagnostic tool.
Clear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.
V2 MR-376-X76-17B050$084.mif
PETROL INJECTION
Fault finding – Interpretation of faults17B
V42 Injection
Program No.: 2A
Vdiag No.: 04, 05, 06,
14, 16, 18
DF1034
PRESENT OR
STOREDCOMBUSTION MISFIRES
1.DEF: Polluting misfiring
2.DEF: Destructive misfiring
NOTESFault priorities:
Deal with the following faults first:
–DF109 Low fuel level misfiring
–DF059 Misfiring on cylinder 1
–DF060 Misfiring on cylinder 2
–DF061 Misfiring on cylinder 3
–DF062 Misfiring on cylinder 4
Special notes:
After this fault appears:
the OBD warning light is on.
Conditions for application to a stored fault:
The fault is declared present:
Engine idling.
1.DEF
NOTESNone.
Check the ignition coil circuit of cylinder 3,
Check the fuel supply circuit (see MR 451 (Duster), MR 423 (Thalia 2/Symbol 2), MR 430 (Clio II F 6) or MR 374
(Kangoo VLL), Mechanical, 13A, Fuel supply, Fuel circuit: Operating diagram),
Check the fuel supply pump circuit,
Check the condition of the cylinder 3 injector (see MR 451 (Duster), MR 423 (Thalia 2/Symbol 2), MR 430 (Clio
II F 6) or MR 374 (Kangoo VLL), Mechanical, 17B, Petrol injection, Injector rail - Injectors: Removal -
Refitting),
Check the compression of cylinder 3.
V42_V04_DF1034/V42_V05_DF1034/V42_V06_DF1034/V42_V14_DF1034/V42_V16_DF1034/V42_V18_DF1034
Page 140 of 279

17B-140
AFTER REPAIRDeal with any faults displayed by the diagnostic tool.
Clear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.
V2 MR-376-X76-17B050$084.mif
PETROL INJECTION
Fault finding – Interpretation of faults17B
V42 Injection
Program No.: 2A
Vdiag No.: 04, 05, 06,
14, 16, 18
DF1034
CONTINUED
After repair, check that the catalytic converter was not damaged by the misfire.
To do this, switch on the ignition, run the catalytic converter test SC006 Run OBD test: Catalytic converter and
start the engine (only depress the brake pedal to authorise the starting of the engine,
Do not depress the accelerator pedal or the clutch pedal).
At the end, check the test results:
STATUS1: Fault finding was not performed/impossible to obtain the necessary conditions
STATUS2: The component is in an average condition - sensor OK
STATUS3: The component is in a good condition - sensor OK
STATUS4: The component is in poor condition - replace the catalytic converter (see MR 451 (Duster), MR 423
(Thalia 2/Symbol 2), MR 430 (Clio II F 6) or MR 374 (Kangoo VLL), Mechanical, 19B, Exhaust, Catalytic
converter: Removal - Refitting).
Note: The catalytic converter procedure is not carried out if a fault is present.
Important: Do not run the procedure if a new catalytic converter is fitted.
2.DEF
NOTESNone.
Check the ignition coil circuit of cylinder 3,
Check the fuel supply circuit (see MR 451 (Duster), MR 423 (Thalia 2/Symbol 2), MR 430 (Clio II F 6) or MR 374
(Kangoo VLL), Mechanical, 13A, Fuel supply, Fuel circuit: Operating diagram),
Check the fuel supply pump circuit,
Check the condition of the cylinder 3 injector (see MR 451 (Duster), MR 423 (Thalia 2/Symbol 2), MR 430 (Clio
II F 6) or MR 374 (Kangoo VLL), Mechanical, 17B, Petrol injection, Injector rail - Injectors: Removal -
Refitting),
Check the compression of cylinder 3.
Page 182 of 279
17B-182V2 MR-376-X76-17B050$120.mif
PETROL INJECTION
Fault finding – Parameter summary table17B
V42 Injection
Program No.: 2A
Vdiag No.: 04, 05, 06,
14, 16, 18
Refriger.*: refrigerant
Syncro*: Synchronisation
OCR*: Opening cyclic ratio
CS*: CamshaftTool
ParameterDiagnostic tool title
PR832Combustion misfiring counter
PR833Combustion misfiring counter
PR834Combustion misfiring counter
PR847Inlet air temperature sensor voltage
PR872Refriger.* pressure sensor voltage
PR876CS* dephaser solenoid valve control OCR*
PR877Estimated engine oil temperature
PR887Motorised throttle safe mode programmed value
PR931Raw turbocharging pressure
PR1026Crankshaft synchro.* loss counter
PR1029 Alternator power
PR1116LPG pressure
PR1129 Brake contact no.1 duration
PR1153 Brake contact no.2 duration
PR1198LPG temperature
PR1232Number of engine rotations
Page 214 of 279

17B-214V2 MR-376-X76-17B050$140.mif
PETROL INJECTION
Fault finding – Command summary table17B
V42 Injection
Program No.: 2A
Vdiag No.: 04, 05, 06,
14, 16, 18
AC217Additional fuel circuit
solenoid valveThis command is used to check the additional fuel circuit
solenoid valve. Only on Flexfuel injection
AC224Additional fuel circuit pump
relay This command is used to check the relay of the additional circuit
pump. Only on Flexfuel injection
AC250 Heating resistor 1 relayThis command is used to activate the heating resistor no.1 relay.
AC251 Heating resistor 2 relayThis command is used to activate the heating resistor no.2 relay.
AC252 Heating resistor 3 relayThis command is used to activate the heating resistor no.3 relay.
SC001 Write saved dataUse this command after replacing or (re)programming the
computer (if the data has been saved using command SC003).
SC003 Save computer dataThis command enables the computer operating data, the engine
adaptives, to be recorded.
SC006Start OBD test: Catalytic
converterThis command is used to test the catalytic converter.
SC007 Run OBD test: O2 sensorThis command is used to test the O2 sensors.
SC061Oil change interval (OCS)
OxidationThis command is used to perform a test on the oil oxidation (see
Technical Note 6523A, Oil change interval (OCS) fault finding
for petrol and diesel engines)
VP010 Enter VIN.This command is used to enter the VIN.
VP036 Fuel supply inhibitedThis command is used to inhibit fuel supply to the engine.
Page 215 of 279
17B-215V2 MR-376-X76-17B050$150.mif
17B
V42 Injection
Program No.: 2A
Vdiag No.: 04, 05, 06,
14, 16, 18
NOTESSpecial note:
Only address this customer complaint after a complete check with the diagnostic
tool.
NO COMMUNICATION WITH THE COMPUTER ALP1
GENERAL APPEARANCE OF ENGINE COMPARTMENT ALP2
APPEARANCE AND MOUNTING OF THE EXHAUST ALP3
LEAK FROM THE ENGINE
FUEL LEAKALP4
ENGINE OIL LEAKALP5
COOLANT LEAKALP6
ODOURS UNDER BONNET
UNUSUAL ODOURALP7
FUEL ODOURALP8
PETROL INJECTION
Fault finding – Customer complaints
Page 217 of 279
17B-217V2 MR-376-X76-17B050$150.mif
PETROL INJECTION
Fault finding – Customer complaints17B
V42 Injection
Program No.: 2A
Vdiag No.: 04, 05, 06,
14, 16, 18
EXCESSIVE CONSUMPTION
EXCESSIVE FUEL CONSUMPTION ALP 13
EXCESSIVE COOLANT CONSUMPTION ALP14
EXCESSIVE OIL CONSUMPTION ALP15
ENGINE STARTING
IMPOSSIBLE TO START THE ENGINE ALP16
ENGINE STALLS WHEN COLD ALP17
THE ENGINE STARTS WITH DIFFICULTY ALP18
PERFORMANCE
LACK OF POWER OR TORQUE ALP19
ACCELERATION GAP ALP20
Page 218 of 279
17B-218V2 MR-376-X76-17B050$150.mif
PETROL INJECTION
Fault finding – Customer complaints17B
V42 Injection
Program No.: 2A
Vdiag No.: 04, 05, 06,
14, 16, 18
DRIVING PLEASURE
ROUGH IDLEALP21
IDLE SPEED TOO HIGH OR TOO LOW ALP22
JERKING OR HESITATION ALP23
ENGINE STALLSALP24
ERRATIC ACCELERATION ALP25
ERRATIC DECELERATION ALP26
ENGINE RACING (WITHOUT ACTION ON THE PEDAL) ALP27
SUSPECTED NOISE WITH NO FAULT ON THE DEPHASER SYSTEMTechnical Note
6506A
ALP 2
OIL LEAK FROM THE CAMSHAFT DEPHASERTechnical Note
6506A
ALP 7
OIL LEAK FROM THE CAMSHAFT DEPHASER SOLENOID VALVETechnical Note
6506A
ALP 8