2008 RENAULT SCENIC cooling

17C-103
MR-372-J84-17C000$944.mif
V2
GAS INJECTION
Fault finding - Fault finding chart (ALP)
LPG 3000
Program No: AB
Vdiag No: 08/10
17C
ALP 3 The engine stalls when switched to LPG mode
IMPORTANT
When carrying out an operation on an LPG supply circuit component, consult the safety instructions
(see 17D, Gas injection, Introduction, Safety instructions for all operations).
NOTESCheck that there is LPG in the tank.
Check the condition of the air filter.
Replace the filter if necessary.
Check that the LPG supply pipes are not pinched or crushed.
Replace the faulty pipes if necessary.
Check the expansion valve cooling circuit (see MR 364 Mechanics, 17D, LPG injection, Expansion valve).
Repair the circuit if necessary.
Measure the resistance between tracks 1 and 2 of the injectors.
Replace the injectors if their resistance value at approximately 20°C is not between:
0.77 Ω < R < 1.43 Ω
Check the following connections for insulation from earth, continuity and absence of extraneous
resistance:
Main relay track 5
Main relay track 5
Main relay track 5
Main relay track 5track 1of injector 1
track 1of injector 2
track 1of injector 3
track 1of injector 4
Check the insulation from + 12 V, the continuity and the absence of interference resistance of
the connections between:
LPG computer track G3
LPG computer track G4
LPG computer track H2
LPG Computer track H3track 2 of injector 1
track 2 of injector 2
track 2 of injector 3
track 2 of injector 4
If necessary, repair the defective connections.
AFTER REPAIRCheck using the diagnostic tool.
GAZ3000_V08_ALP3 / GAZ3000_V10_ALP3

17C-105
MR-372-J84-17C000$944.mif
V2
GAS INJECTION
Fault finding - Fault finding chart (ALP)
LPG 3000
Program No: AB
Vdiag No: 08/10
17C
ALP 4 Idle speed faults
IMPORTANT
For any operation on a component of the LPG supply circuit, consult the safety instructions (see 17D,
LPG injection, Introduction, Safety instructions for all operations).
NOTESCheck that there is no fault in petrol mode.
Check that there is LPG in the tank.
Check that hoses are not blocked or pinched (especially after removal operations).
Repair the faulty component or components.
Check the condition of the air filter.
Replace the air filter if necessary.
Check the expansion valve cooling circuit (see MR 364 Mechanical, 17D, LPG injection, Expansion valve).
Repair the circuit if necessary.
Check the conformity of the spark plugs.
Replace the filter if necessary.
Test the operation of the injectors.
Run and interpret commands AC018 Cylinder 4 injector, AC019 Cylinder 3 injector, AC020 Cylinder 2
injector and AC021 Cylinder 1 injector.
AFTER REPAIRCheck using the diagnostic tool.
GAZ3000_V08_ALP4 / GAZ3000_V10_ALP4

17C-106
MR-372-J84-17C000$944.mif
V2
GAS INJECTION
Fault finding - Fault finding chart (ALP)
LPG 3000
Program No: AB
Vdiag No: 08/10
17C
ALP 5 Faults occurring while driving
IMPORTANT
When carrying out an operation on an LPG supply circuit component, consult the safety instructions
(see 17D, Gas injection, Introduction, Safety instructions for all operations).
NOTESCheck that there is no fault in petrol mode.
Check that hoses are not blocked or pinched (especially after removal operations).
Repair the faulty component or components.
Check the condition of the air filter.
Replace the air filter if necessary.
Check the expansion valve cooling circuit (see MR 364 Mechanical, 17D, LPG injection, Expansion valve).
Repair the circuit if necessary.
Check the conformity of the spark plugs.
Replace the filter if necessary.
Test the operation of the injectors.
Run and interpret commands AC018 Cylinder 4 injector, AC019 Cylinder 3 injector, AC020 Cylinder 2
injector and AC021 Cylinder 1 injector.
AFTER REPAIRCheck using the diagnostic tool.
GAZ3000_V08_ALP5 / GAZ3000_V10_ALP5