2013 RENAULT KANGOO fuel pressure

17B-5V2 MR-376-X76-17B050$030.mif
17B
V42 Injection
Program No.: 2A
Vdiag No.: 04, 05, 06,
14, 16, 18
Injection computer:
The injection computer receives information from various sensors and sends control signals to various actuators
according to mappings that it has stored in the memory.
TDC sensor:
This sensor allows the computer to provide synchronisation as well as to know the position Top Dead Centre for
injection phasing.
Pinking sensor:
This sensor allows the computer to correct the ignition advance under high engine load to avoid damaging the
engine.
Refrigerant pressure sensor:
The role of the sensor is to measure the refrigerant fluid pressure in the air conditioning circuit.
Injection coolant temperature sensor:
The engine coolant temperature sensor informs the computer about the engine coolant temperature.
Injection air temperature sensor:
The air temperature sensor provides the computer with the temperature of air taken in by the engine.
Oxygen sensors:
The oxygen sensors allow the catalytic converter to correctly perform engine emission control tasks.
Accelerator potentiometer:
The potentiometer allows the computer to take into account driver requests expressed using the accelerator pedal.
Clutch pedal switch:
This switch allows the computer to convert to anti-jerking mode when the clutch pedal is depressed.
Brake light switch:
The brake light switch informs the computer of the brake pedal status.
Two gangs are used if the cruise control function exists.
Injectors:
These injectors enable rapid, precise metering of the quantity of fuel injected, with excellent injection process
repetitiveness.
PETROL INJECTION
Fault finding – Role of components

17B-7V2 MR-376-X76-17B050$040.mif
17B
V42 Injection
Program No.: 2A
Vdiag No.: 04, 05, 06,
14, 16, 18
For flex-fuel engines
1. Air filter
2. Motorised throttle valve
3. Injection air temperature sensor
4. Manifold pressure
5. Injectors
6. Ignition coils
7. Injection coolant temperature sensor
8. Pinking sensor
9. TDC sensor
10. Upstream oxygen sensors
11. Downstream oxygen sensors
12. Injection computer
13. Auxiliary cold starting system
14. Auxiliary fuel tank
15. Auxiliary fuel
16. Petrol/alcohol tank
17. Petrol pump
18. Bleed valve
PETROL INJECTION
Fault finding – Operating diagram

17B-10V2 MR-376-X76-17B050$050.mif
PETROL INJECTION
Fault finding – Features17B
V42 Injection
Program No.: 2A
Vdiag No.: 04, 05, 06,
14, 16, 18
Idle speed management
This programming is used to calculate the adapted idle speed according to the conditions of use (cold engine, air
conditioning requests, electrical consumer use etc.).
Air supply
This is managed by a motorised throttle valve which is controlled by the injection computer.
The injection computer also performs the following tasks using the motorised throttle:
– management of valve oscillations which can produce undesirable torque,
– management of valve movement subject to mechanical faults when the valve reaches its mechanical boundaries,
– management of acoustic faults by limiting throttle opening at a certain engine speed and when stopping the engine.
Torque management
The torque structure is the system for managing engine torque. It is necessary for some functions such as the
electronic stability program (ESP), automatic transmission (BVA) or sequential gearbox (BVR).
Each computer (ESP, sequential gearbox, automatic transmission) sends a request for torque via the multiplex
network to the injection computer. This arbitrates between the various torque requests and the driver's request
(made via the accelerator pedal or the cruise control/speed limiter).
The result of this arbitration gives the torque setpoint. The computer then calculates the throttle position setpoint, the
ignition advance and the wastegate setpoint (if a turbocharged engine) in order to provide the necessary torque.
Ignition management
Management of ignition advance enables the combustion quality to be managed and therefore engine operation to
be optimised. For a positive advance, the ignition point will be before TDC*, however the advance can have a
negative value.
TDC*: Top Dead Centre.
Fuel supply management
The fuel pump ensures the supply of fuel. It is activated for one second each time the + after ignition feed is switched
on. It ensures the correct level of pressure in the circuit and thereby achieves correct engine starting, particularly if
the vehicle has not been used for a long time. When the engine is running, the pump relay is controlled and
therefore the pump is always active.
The petrol vapour absorber enables petrol vapour to be collected in order to limit its release into the atmosphere.
Richness adjustment
Richness is managed using the upstream and downstream oxygen sensors located on the exhaust. For the sensors
to be operational quickly, they need to be heated by the exhaust gas and by a resistor internal to the sensor. These
sensors reflect the efficiency of combustion and, using information sent to the computer, they enable the quantity of
fuel injected to be managed in order to meet the emission control standards and to ensure optimum engine
operation.

17B-18V2 MR-376-X76-17B050$070.mif
PETROL INJECTION
Fault finding – Fault summary table17B
V42 Injection
Program No.: 2A
Vdiag No.: 04, 05, 06,
14, 16, 18
Tool fault DTC code Diagnostic tool title
DF38010A5 Cylinder 2 injector control
DF38110A6 Cylinder 3 injector control
DF38210A7 Cylinder injector 4 command
DF3940420 Catalytic converter operating fault
DF3980170 Fuel circuit operating fault
DF4090461 Fuel level sensor circuit
DF4361314 Detection of engine misfiring
DF4570315 Flywheel target
DF504C101 Automatic transmission
DF5310618 LPG system
DF5322502 Alternator charge signal
DF5562135 Pedal/throttle position consistency
DF6310703 Brake light switch signal
DF6331170 LPG fuel circuit operating fault
DF6351301 LPG cylinder 1 misfire
DF6361302 LPG cylinder 2 misfire
DF6371303 LPG cylinder 3 misfire
DF6381304 LPG cylinder 4 misfire
DF6391300 Combustion misfire in LPG mode
DF648060A Computer
DF7210217 Engine overheating
DF7732294 Pressure regulator circuit

17B-19V2 MR-376-X76-17B050$070.mif
PETROL INJECTION
Fault finding – Fault summary table17B
V42 Injection
Program No.: 2A
Vdiag No.: 04, 05, 06,
14, 16, 18
*Refriger: RefrigerantTool fault DTC code Diagnostic tool title
DF8842632 Additional fuel circuit pump relay
DF8870226 Brake - accelerator pedal position
DF8941633 Additional fuel circuit solenoid valve
DF9740225 Pedal potentiometer circuit gang 1
DF9752120 Pedal potentiometer circuit gang 2
DF9921644 Additional heater 1 relay circuit
DF9931645 Additional heater 2 relay circuit
DF9941646 Additional heater 3 relay circuit
DF10150504 Brake switch signal consistency
DF10160833 Clutch switch signal consistency
DF1017061A Computer
DF10340314 Combustion misfire
DF10580106 Inlet pressure consistency
DF1063C415 ESP multiplex connection
DF10680530 Refriger* pressure sensor voltage
DF10720645 Air conditioning compressor relay control
DF10740638 Motorised throttle position inconsistent

17B-89V2 MR-376-X76-17B050$082.mif
PETROL INJECTION
Fault finding – Interpretation of faults17B
V42 Injection
Program No.: 2A
Vdiag No.: 04, 05, 06,
14, 16, 18
AFTER REPAIRFollow the instructions to confirm repair.
Deal with any other faults.
Clear the stored faults.
DF398
PRESENT OR
STOREDFUEL CIRCUIT OPERATING FAULT
1.DEF: Component in poor condition.
NOTESPriority when dealing with a number of faults:
Deal with the other faults first.
– DF085 - Fuel pump relay control circuit
Conditions for applying the fault finding procedure 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) or MR 374 (Kangoo VLL), 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) or MR 423 (Thalia 2/Symbol 2), MR 430 (Clio
II F 6), MR 374 (Kangoo VLL), 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)
or MR 423 (Thalia 2/Symbol 2), MR 430 (Clio II F 6), MR 374 (Kangoo VLL), 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), MR 374 (Kangoo
VLL), 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) or MR 423 (Thalia 2/Symbol 2), MR 430 (Clio
II F 6), MR 374 (Kangoo VLL), Mechanical, 19C, Tank, Fuel tank: Removal - Refitting),
V42_V04_DF398/V42_V05_DF398/V42_V06_DF398/V42_V14_DF398/V42_V16_DF398/V42_V18_DF398

17B-90V2 MR-376-X76-17B050$082.mif
PETROL INJECTION
Fault finding – Interpretation of faults17B
V42 Injection
Program No.: 2A
Vdiag No.: 04, 05, 06,
14, 16, 18
AFTER REPAIRFollow the instructions to confirm repair.
Deal with any other faults.
Clear the stored faults.
DF398
CONTINUED 1
– 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) or MR 423 (Thalia 2/Symbol 2),
MR 430 (Clio II F 6), MR 374 (Kangoo VLL), 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) or MR 374 (Kangoo VLL), 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) or MR 423 (Thalia 2/Symbol 2), MR 430 (Clio II F 6), MR 374 (Kangoo
VLL), 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) or MR 423 (Thalia 2/Symbol 2), MR 430 (Clio II F 6), MR 374
(Kangoo VLL), Mechanical, 17B, Petrol injection, Injector rail - Injectors: Removal - Refitting).

17B-91V2 MR-376-X76-17B050$082.mif
PETROL INJECTION
Fault finding – Interpretation of faults17B
V42 Injection
Program No.: 2A
Vdiag No.: 04, 05, 06,
14, 16, 18
AFTER REPAIRFollow the instructions to confirm repair.
Deal with any other faults.
Clear the stored faults.
DF398
CONTINUED 2
If the value of PR139 > 1 then:
– Check the pressure regulator,
– Check the connections on the inlet manifold (see MR 388 or 451, 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) or MR 423 (Thalia 2/Symbol 2), MR 430 (Clio II F 6),
MR 374 (Kangoo VLL), 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.