17B-103
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
DF633
PRESENT OR
STOREDLPG FUEL CIRCUIT OPERATING FAULT
DEF: Component in poor condition
NOTESPriorities when dealing with a combination of faults:
First deal with:
– DF398 – "Fuel system functional failure"
Conditions for application to a stored fault:
The fault is declared present with the engine running at an engine speed of 2500 rpm
for 10 seconds.
Special note:
OBD warning light comes on.
Check the value of parameter PR139 Operating richness adaptive.
If the value of PR139 < 1 then:
Check the sealing of the fuel supply system from the fuel pump to the injector rail:
– The fuel tank (see MR 388 (Logan and Sandero), MR 451 (Duster), MR 423 (Thalia 2/Symbol 2), MR 430
(Clio II F 6), Mechanical, 19C, Tank, Fuel tank: Removal - Refitting)
– The connection between the fuel pump and the fuel filter (see MR 388 (Logan and Sandero) Mechanical, 19C,
Tank, Fuel supply pipe: Removal - Refitting, MR 451 (Duster), MR 423 (Thalia 2/Symbol 2), MR 430 (Clio
II F 6), Mechanical, 19C, Tank, Fuel tank: Removal - Refitting)
– The connection between the fuel filter and the regulator (see MR 388 (Logan and Sandero), MR 451 (Duster),
MR 423 (Thalia 2/Symbol 2), MR 430 (Clio II F 6), Mechanical, 13A, Fuel supply, Fuel filter: Removal -
Refitting)
– The pressure regulator ducts (see MR 388 (Logan and Sandero), Mechanical, 19C, Tank, Fuel supply pipe:
Removal - Refitting, MR 451 (Duster), MR 423 (Thalia 2/Symbol 2), MR 430 (Clio II F 6), Mechanical, 19C,
Tank, Fuel tank: Removal - Refitting)
– The connection between the regulator and the injector rail (see MR 388 (Logan and Sandero), Mechanical,
19C, Tank, Fuel supply pipe: Removal - Refitting, MR 451 (Duster), MR 423 (Thalia 2/Symbol 2), MR 430
(Clio II F 6), Mechanical, 19C, Tank, Fuel tank: Removal - Refitting)
V42_V18_DF633
17B-104
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
DF633
CONTINUED
– The fuel ducts between the injector rail and the injectors (see MR 388 (Logan and Sandero)
– Mechanical, 13A, Fuel supply, Injector rail - Injectors: Removal - Refitting, MR 451
(Duster), MR 423 (Thalia 2/Symbol 2), MR 430 (Clio II F 6), Mechanical, 17B, Petrol injection, Injector rail -
Injectors: Removal - Refitting)
– Check the fuel filter (to detect possible clogging) (see MR 388 (Logan and Sandero), MR 451 (Duster), MR 423
(Thalia 2/Symbol 2), MR 430 (Clio II F 6), Mechanical, 13A, Fuel supply, Fuel filter: Removal - Refitting)
– Check the pressure regulator,
– Check the fuel pump flow (see MR 388 (Logan and Sandero), Mechanical, 13A, Fuel supply, Fuel flow:
Removal - Refitting, MR 451 (Duster), MR 423 (Thalia 2/Symbol 2), MR 430 (Clio II F 6), Mechanical, 13A,
Fuel supply, Fuel flow: Check)
– Check the injector flow (see MR 388 (Logan and Sandero), Mechanical, 13A, Fuel supply, Injector rail -
Injectors: Removal - Refitting, MR 451 (Duster), MR 423 (Thalia 2/Symbol 2), MR 430 (Clio II F 6),
Mechanical, 17B, Petrol injection, Injector rail - Injectors: Removal - Refitting).
If the value of PR139 > 1 then:
– Check the pressure regulator,
– Check the inlet manifold connections (see MR 388 (Logan and Sandero), MR 451 (Duster), MR 430 (Clio II F
6), Mechanical, 12A, Fuel mixture, Air inlet: Description)
– Check for possible petrol leaks (see ALP4 Fuel leak),
– Check for possible air leaks,
– Check the sealing of the injectors (see MR 388 (Logan and Sandero), Mechanical, 13A, Fuel supply, Injector
rail - Injectors: Removal - Refitting, MR 451 (Duster), MR 423 (Thalia 2/Symbol 2), MR 430 (Clio II F 6),
Mechanical, 17B, Petrol injection, Injector rail - Injectors: Removal - Refitting)
– Check the seal between the inlet manifold and the solenoid valve unit.
If the fault is still present, contact the Techline.
17B-105
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
DF635
PRESENT OR
STOREDLPG CYLINDER 1 COMBUSTION MISFIRE1.DEF: Polluting misfiring.
2.DEF: Destructive misfiring.
NOTESPriority when dealing with a number of faults:
– DF109 Low fuel level 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 circuit (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 1 injector (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 compression of cylinder 1.
V42_V18_DF635
17B-107
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
DF635
CONTINUED 2
2.DEFNOTESNone.
Check the ignition coil circuit (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 1 injector (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 compression of cylinder 1.
17B-108
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
DF636
PRESENT OR
STOREDLPG CYLINDER 2 COMBUSTION MISFIRE1.DEF: Polluting misfiring.
2.DEF: Destructive misfiring.
NOTESPriority when dealing with a number of faults:
– DF109 Low fuel level 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 circuit (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 2 injector (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 compression of cylinder 2.
V42_V18_DF636
17B-110
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
DF636
CONTINUED 2
2.DEFNOTESNone.
Check the ignition coil circuit (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 2 injector (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 compression of cylinder 2.
17B-111
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
DF637
PRESENT OR
STOREDLPG CYLINDER 3 COMBUSTION MISFIRE1.DEF: Polluting misfiring.
2.DEF: Destructive misfiring.
NOTESPriority when dealing with a number of faults:
– DF109 Low fuel level 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 circuit (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 3 injector (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 compression of cylinder 3.
V42_V18_DF637
17B-113
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
DF637
CONTINUED 2
2.DEFNOTESNone.
Check the ignition coil circuit (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 3 injector (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 compression of cylinder 3.