PETROL INJECTION
Fault finding - Interpretation of faults
17B
17B-116
PETROL INJECTION
Fault finding - Interpretation of faults
17B
17B-116V9 MR-372-J84-17B050$423.mif
S3000 Injection
Program No.: AD
Vdiag No.: 4C / 54
DF639
PRESENT
OR
STOREDCOMBUSTION MISFIRE IN LPG MODE
1.DEF: Destructive misfiring
2.DEF: Pollutant misfiring
3.DEF: Non-compliance with emission control standards
NOTESPriority when dealing with a number of faults:
– LPG fuel system: see 17C, LPG injection,
– ignition:
DF361 Ignition coil circuit cylinders 1-4,
DF362 Ignition coil circuit cylinders 2-3.
– flywheel signal:
DF154 Flywheel signal sensor circuit,
DF457 Engine flywheel target.
– cylinder combustion misfires:
DF059 Combustion misfire in cylinder 1,
DF060 Combustion misfire in cylinder 2,
DF061 Combustion misfire in cylinder 3,
DF062 Combustion misfire in cylinder 4.
Conditions for applying the fault finding procedure to stored faults:
The fault is considered present under the following conditions:
– there must be no further electrical faults,
– the programming must have been done, particularly the flywheel target,
– engine warm (min 75°C),
– run the engine at idle speed with all electrical consumers switched on for
approximately 15 minutes.
Special note:
– catalytic converter misfire: OBD warning light flashes when the fault is present then
is continuously lit,
– pollutant combustion misfire: OBD warning light lit continuously.
– engine unstable, loss of power and vibrations.
Check the LPG injectors.
Check the condition and conformity of the spark plugs.
Check the ignition pencil coils.
If the fault is still present, carry out the following checks:
– check the flywheel sensor,
– check the condition and cleanliness of the flywheel,
– check the flywheel sensor mounting,
– check the sensor/flywheel air gap,
– check the cylinder compressions,
– check the LPG fuel system,
– check the complete ignition system (see MR 364 or 370 Mechanics, 17A, Ignition),
– check the hydraulic tappets if there is camshaft noise (see MR 364 or 370 Mechanics, 11A, Top and front of
engine).
If the fault is still present, deal with the other faults then proceed with the conformity check.
AFTER REPAIRFollow the instructions to confirm repair.
Deal with any other faults.
Clear the stored faults.
S3000_V4C_DF639/S3000_V54_DF639
PETROL INJECTION
Fault finding - Conformity check
17B
17B-123
PETROL INJECTION
Fault finding - Conformity check
17B
17B-123V9 MR-372-J84-17B050$470.mif
S3000 Injection
Program No.: AD
Vdiag No.: 4C / 54
FUEL CIRCUIT SUB-FUNCTION:
NOTESOnly check the conformity after a complete check with the diagnostic tool. The values
shown in this conformity check are given as a guide.
Application conditions: Engine off, ignition on.
Order FunctionParameter or Status Checked
or ActionDisplay and notes Fault finding
1 Engine speed PR055:Engine speedIndicates the
engine's speed of
rotation in rpm.
PR055= 0rpmIn the event of a fault,
apply the
interpretation for
DF154 Flywheel
signal sensor
circuit.
2
Idle speedPR014:Idle speed correctionIndicates the engine
rotation speed
correction
in rpm.
0rpmNone
3ET054:Idle speed regulationINACTIVE None
PR010:Idle speed regulation
setting700 < X < 750 rpm
Indicates the speed
of rotation setpoint
before last engine
stop in rpm.None
PETROL INJECTION
Fault finding - Conformity check
17B
17B-124
PETROL INJECTION
Fault finding - Conformity check
17B
17B-124V9 MR-372-J84-17B050$470.mif
S3000 Injection
Program No.: AD
Vdiag No.: 4C / 54
SUB-FUNCTION: FUEL CIRCUIT (continued 1):
OCR: Opening Cycle Ratio
NOTESOnly check the conformity after a complete check with the diagnostic tool. The values
shown in this conformity check are given as a guide.
Application conditions: Engine off, ignition on.
Order FunctionParameter or Status Checked
or ActionDisplay and notes Fault finding
4Motorised
throttlePR090:Idle speed regulation
programming value- 12% < PR090 < 12%
PR090, an adaptive built-in
action, is a stored
parameter designed to
program variation and
engine ageing for the idle
speed regulator. These are
programmed only when the
engine is idling and warm,
and no electrical
consumers (electrical
windscreen, air
conditioning, GMV, power
steering) have been
selected. Therefore it
adjusts slowly.WITHOUT
5Motorised
throttlePR091:Theoretical idle
speed regulation
OCR0% < PR091 < 60%
When the conditions for
regulation are met, the idle
regulator continually
repositions the motorised
throttle to keep the engine
speed at the idling speed
setting. The motorised
throttle opening ratio
required to adhere to the
engine speed setpoint is
then given by parameter
PR091.
PETROL INJECTION
Fault finding - Conformity check
17B
17B-125
PETROL INJECTION
Fault finding - Conformity check
17B
17B-125V9 MR-372-J84-17B050$470.mif
S3000 Injection
Program No.: AD
Vdiag No.: 4C / 54
FUEL CIRCUIT SUB-FUNCTION (continued 2):
NOTESOnly check the conformity after a complete check with the diagnostic tool. The values
shown in this conformity check are given as a guide.
Application conditions: Engine off, ignition on.
Order FunctionParameter or Status Checked
or ActionDisplay and notes Fault finding
6
RichnessPR138:Richness correctionIn loop mode, the
richness correction
corrects the injection
duration to obtain a
fuel mixture as close
as possible to a
richness of 1. The
richness correction
value varies around
50 between 0 and
100.
0
8ET056:Richness double loopINACTIVEIn the event of a fault,
apply the
interpretation of
ET056 Double
richness loop.
9
Oxygen sensorPR144:Self-adapting
richness offset0
used to detect any
tendency of the
injection system to
increase or decrease
the richness.
WITHOUT
10 PR143:Self-adapting
richness gain0
used to detect any
tendency of the
injection system to
increase or decrease
the richness.
11 Injection PR101:Duration of injection0µs
12Fuel
consumption.PR103:Instantaneous fuel
consumptionPR103 = 0 l/h
PETROL INJECTION
Fault finding - Conformity check
17B
17B-126
PETROL INJECTION
Fault finding - Conformity check
17B
17B-126V9 MR-372-J84-17B050$470.mif
S3000 Injection
Program No.: AD
Vdiag No.: 4C / 54
SUB-FUNCTION: FUEL CIRCUIT (continued 3):
NOTESOnly check the conformity after a complete check with the diagnostic tool. The values
shown in this conformity check are given as a guide.
Application conditions: Engine off, ignition on.
Order FunctionParameter or Status
Checked or ActionDisplay and notes Fault finding
13 Fuel pump ET047:Fuel pump
control circuitACTIVE for 1 second when the
ignition is switched on then
INACTIVEIf ACTIVE, apply
the interpretation
of DF085 Fuel
pump relay
control circuit
(when the +
after ignition
feed is turned
on, the pump
control circuit is
ACTIVE for
1 second then
becomes
INACTIVE).
14
IN LPG
ACTIVATED
MODEET561:Operating
modePetrol
Ignition on
In the event of a
fault, (see 17C,
3000 LPG
injection). 15 ET067:LPG readyWith LPG YESWithout LPG
NO by default
16 ET073:Conditions for
switching to
LPG modeWith LPG
AUTHORISEDWithout LPG
INHIBITED by
default
17 ET068:LPG tank
emptyWith LPG "NO"Without LPG
NO by default
18 ET066:LPG faultWith LPG "NO"Without LPG
NO by default
19 ET071:Transition
from petrol
mode to LPG
modeWith LPG
COMPLETEWithout LPG
COMPLETE by
default
20 ET072:Transition
from LPG
mode to petrol
modeWith LPG
IN PROGRESSWithout LPG
COMPLETE by
default
PETROL INJECTION
Fault finding - Conformity check
17B
17B-128
PETROL INJECTION
Fault finding - Conformity check
17B
17B-128V9 MR-372-J84-17B050$470.mif
S3000 Injection
Program No.: AD
Vdiag No.: 4C / 54
EMISSION CONTROL / OBD SUBFUNCTION (cont.):
NOTESOnly check the conformity after a complete check with the diagnostic tool. The values
shown in this conformity check are given as a guide.
Application conditions: Engine off, ignition on.
Order FunctionParameter or Status Checked
or ActionDisplay and notes Fault finding
7
Oxygen sensorET052:Upstream O
2 sensor
heatingINACTIVEIn the event of a fault
apply the interpretation of
DF601 Upstream
oxygen sensor heating
power circuit.
8ET053:Downstream O
2
sensor heatingINACTIVEIn the event of a fault,
apply interpretation of
DF602 Downstream
oxygen sensor heating
power circuit.
9CanisterAC017:Canister bleed
solenoid valveThe canister
bleed solenoid
valve should be
heard running.In the event of a fault,
apply interpretation of
DF549 Canister bleed
circuit.
10
Fault findingET617:Upstream oxygen
sensor OBD fault
findingINACTIVE None
11 ET619:Fuel circuit OBD fault
findingINACTIVE None
12 ET581:Petrol combustion
misfire fault findingINACTIVE None
13 Fault finding ET340:Request by automatic
transmission to light
up the OBD warning
lightINACTIVEIf ACTIVE, apply the
interpretation of fault
DF099 Automatic
gearbox or sequential
gearbox connection via
the multiplex network.
14
RichnessET300:Richness regulationACTIVE
INACTIVEWITHOUT
15 ET056:Richness double loopACTIVE
INACTIVEIn the event of a fault,
apply the interpretation of
ET056 Double richness
loop.
PETROL INJECTION
Fault finding - Conformity check
17B
17B-134
PETROL INJECTION
Fault finding - Conformity check
17B
17B-134V9 MR-372-J84-17B050$470.mif
S3000 Injection
Program No.: AD
Vdiag No.: 4C / 54
SUB-FUNCTION: IGNITION/PREHEATING (continued 1):
NOTESOnly check the conformity after a complete check with the diagnostic tool. The values
shown in this conformity check are given as a guide.
Application conditions: Engine off, ignition on.
Order FunctionParameter or Status Checked
or ActionDisplay and notes Fault finding
9ET581:Petrol combustion
misfire fault findingINACTIVEIn the event of a fault,
apply interpretation of
faults DF059
Combustion misfire
in cylinder 1, DF060
Combustion misfire
in cylinder 2, DF061
Combustion misfire
in cylinder 3, DF062
Combustion misfire
in cylinder 4. 10
Combustion
misfireET057:Misfiring on cylinder 1NO
11 ET058:Misfiring on cylinder 2NO
12 ET059:Misfiring on cylinder 3NO
13 ET060:Misfiring on cylinder 4NO
14 ActuatorsAC079
:Actuator static testAll the actuators must
be operated (fuel
pump relay, electric
coolant pump on
F4RT, downstream
and upstream sensor
heating, motorised
throttle)In the event of a fault,
apply interpretation of
fault associated with
the actuators
concerned.
PETROL INJECTION
Fault finding - Conformity check
17B
17B-135
PETROL INJECTION
Fault finding - Conformity check
17B
17B-135V9 MR-372-J84-17B050$470.mif
S3000 Injection
Program No.: AD
Vdiag No.: 4C / 54
IGNITION/PREHEATING SUB-FUNCTION (continued 2):
NOTESOnly check the conformity after a complete check with the diagnostic tool. The values
shown in this conformity check are given as a guide.
Application conditions: Engine off, ignition on.
Order FunctionParameter or Status Checked
or ActionDisplay and notes Fault finding
15
Combustion
misfire
GasET582:LPG combustion
misfire fault findingINACTIVEIn the event of a fault,
apply interpretation of
faults DF635
Combustion misfire
in LPG cylinder 1,
DF636 Combustion
misfire in LPG
cylinder 2, DF637
Combustion misfire
in LPG cylinder 3,
DF638 Combustion
misfire in LPG
cylinder 4. 16 ET583:LPG cylinder 1
combustion misfireNO
17 ET584:LPG cylinder 2
combustion misfireNO
18 ET585:LPG cylinder 3
combustion misfireNO
19 ET586:LPG cylinder 4
combustion misfireNO
20 Actuators AC079:Actuator static testAll the actuators
must be operated
(fuel pump relay,
electric coolant
pump on F4RT,
downstream and
upstream sensor
heating, motorised
throttle)In the event of a fault,
apply interpretation of
fault associated with
the actuators
concerned.