13B-228
MR-372-J84-13B150$893.mif
V10
EDC16 INJECTION
Program No.: C1
Vdiag No.: 44, 48 and 4CDIESEL INJECTION
Fault finding - Tests13B
TEST 2
CONTINUED
High pressure circuit check
Note:
According to the vehicle type, maximum visual
access will either be from above or from below.
Visually inspect the condition of the following
components:
– outlet pipe of the compressor to the turbocharging
air cooler,
– turbocharging air cooler outlet pipe at inlet
manifold,
– inlet manifold,
– temperature and pressure sensors.
Is one of these components incorrect
(disconnected, cut, bent, pierced or kinked
pipes)?
NO
Exhaust system check
Visually inspect the condition of the following
engine parts:
– the exhaust manifold circuit to the turbocharger
turbine,
– the turbine outlet pipe to the end of the exhaust
pipe,
– from the inlet manifold to the EGR valve,
– check that the temperature and pressure sensors
are connected.
Do some of these components have black or
white marks on them?
NO
Run test 3: Turbocharger control solenoid valve check.
YESReplace the defective parts (see MR
364 (Mégane II) or 370 (Scénic II),
Mechanical, 12B, Turbocharging).
YES
13B-236
DIESEL INJECTION
Fault finding - Glossary13B
V10 MR-372-J84-13B150$940.mif
EDC16 INJECTION
Program No.: C1
Vdiag No: 44, 48 and 4CDIESEL INJECTION
Fault finding - Glossary
(R = Resistance, EGR = Exhaust gas recirculation)Injection computer112-track (BOSCH)
Connectors: black A 32-track, brown B 48-track, grey C 32-track
Atmospheric pressure sensorIntegrated into the computer (BOSCH)
Injector0.33Ω at + 20°C / 2Ω max (BOSCH)
1350 bar
Flow regulator (high pressure
pump)R= 3Ω at + 20°C (BOSCH, CP3.2+ pump type)
Rail pressure sensorRail pressure limiter: opening at around 1600 bar
(BOSCH, bolted to the rail)
Engine speed sensorR = 680 ± 170Ω at + 20°C (MGI)
Camshaft sensorHall effect sensor (ELECTRICFIL)
R = 10250 ± 500Ω at + 20°C (measurement between tracks 2 and 3
of the sensor)
Turbocharger control solenoid
valve15.4 ± 0.7Ω at + 20°C (PIERBURG)
Electric EGR valveTrack 1: + 12 V solenoid
Track 2: + 5 V potentiometer
Track 3: Not usedTrack 4: potentiometer earth
Track 5: solenoid earth
Track 6: potentiometer signal
SOLENOID: R between tracks 1 and 5 = 8 ± 0.5Ω at + 20°C
POTENTIOMETER: R between tracks 2 and 4: 4 ± 2 kΩ at + 20°C
(Pierburg)
EGR by-pass solenoid valveR= 46 ±3Ω at + 25°C
(EATON/BITRON)
Electric damper valveDIRECT CURRENT MOTOR
(VDO)
Air flowmeterTrack 1: air temperature signal
Track 2: flow sensor earth
Track 3: + 5 V flowmeterTrack 4: + 12 V battery
Track 5: air flow signal
Track 6: battery earth
(SIEMENS)
Air temperature sensorR = 3714Ω ± 161 at + 10°C/2448Ω ± 96 at + 20°C/1671Ω ± 59 at
+30°C
Coolant temperature sensorR = 2252Ω ± 112 at 25°C/811Ω ± 39 at 50°C/283Ω ±8 at 80°C
Fuel temperature sensorR = 2051Ω ± 123 at 25°C/810Ω ± 47 ± at 50°C/309Ω ± 17 at 80°C
Accelerator pedal sensorR gang 1 = 1700 ± 900Ω
R gang 2 = 2850 ± 2050Ω
Heater plugR= 0.6Ω at + 20°C/2Ω max
Maximum current drawn: 28 A at 0 seconds/12 A at 10 seconds/9 A after
30 seconds
Diesel fuel temperature sensorAccording to application (ZERTAN)
MR-372-J84-13B150$940.mif
