Pierburg.pdf

Re: opel corsa c - Szarpanie silnika i wypadanie zapłonu z12xep

dla zainteresowanych działaniem EGR Pierburg zał±czam plik, może komu¶ się przyda, dla dociekliwych, jest też tłumaczenie na jednym z forów tematycznych. Chyba znalazłem przyczynę usterki, jednak muszę przetestować na innym zaworze


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Service
information
SI 0085
FOR TECHNICAL PERSONNEL ONLY!

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Fuel Supply

Electric EGR Valves (Renault, Opel)
Stickiness at the valves
Product:
Pierburg No.:

O.E. Nr.: *)

7.22818.56.0
7.22818.59.0

7.22818.06.0/ .17.0/
.29.0/ .32.0/ .34.0/
.39.0/ .41.0/ .51.0

8200 088 888; 8200 169 634;
8200 235 232; 8200 270 539;
8200 294 794

7.22818.02.0/ .23.0/
.30.0/ .37.0/ .43.0

7700 107 797, 8200 231 630,
8200 282 880, 8200 360 200,
8200 229 190

7.22818.45.0

Espace, Vel Satis, Master II
2.2 DCI 16V

Replacement for:

7.22818.38.0

Renault:

Electric EGR valve

7.22818.01.0/ .03.0/
.16.0/ .26.0

8200 004 883, 8200 130 609,
8200 164 563, 8200 247 250

Opel:
Movano 2.2 DTI
Renault:
Megane, Megane Senic,
Trafic, 1.9 dCI
Clio, Megane, Kangoo, 1.5 dCI

-
-

Possible customer complaints:
Idle operation is not smooth
Jerkiness
Insufficient power
Engine reverts to emergency
operation

EGR valve with sticky deposits and EGR valve as new.

Air Supply

Renault:

Vacuum Generation

Vehicle:

Through checks in the workshop
the diagnosis " Malfunctioning EGR
valve " was determined.

Emission Control
The results of this are:

The causes can generally
not be attributed to the
EGR valve itself.

- The valve is stiff.
- The valve is stuck and does not
open.
- Due to the deposits the opening
cross-section is reduced.

7.22818.56.0
7.22818.45.0
7.22818.38.0

- The valve does not close fully.

For diagnosis information and
possible causes
" following pages

The right of changes and deviating pictures is reserved.
Assignment and usage, refer to the each case current catalogues, TecDoc CD respectively systems based on TecDoc.
* The reference numbers given are for comparison purposes only and must not be used on invoices to the consumer.

MSI Motor Service International GmbH
Hamburger Straße 15
D-41540 Dormagen
KOLBENSCHMIDT

PIERBURG

Phone +49-2133-267-1 00
Fax
+49-2133-267-1 11
pg-aftermarket@pierburg.com

www.msi-motor-service.com

Divers

(C) MSI Motor Service International GmbH - 0306 EN

The built-in electrical EGR valves
suffer through oil-containing
deposits.

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Possible causes
Exceptionally thick deposits may
be due to several causes:

Malfunctions of this kind are, within the OBD, only in part detected and
in part incorrectly assigned.

- The intake or charge air contains large quantities of oil

Here possible EOBD error codes can be:

- Bad, dirty combustion
- Fault affecting engine management
- Wrong software revision for the
engine controller
- Frequent short distance operation (especially during the cold
period of the year, formation of
an oil and water emulsion which
enters into the engine vent)

P0172
P0175
P0400
P0401
P0402
P0403
P0404

Fuel Trim too Rich - Bank
Fuel Trim too Rich - Bank
Exhaust Gas Recirculation
Exhaust Gas Recirculation
Exhaust Gas Recirculation
Exhaust Gas Recirculation
Exhaust Gas Recirculation

1
2
-

Flow Malfunction
Flow Insufficient Detected
Flow Excessive Detected
Circuit Malfunction
Circuit Range/Performance

Possible manufacturer specific error codes can be:
DF077
DF084
DF241

The high soot share in the
exhaust gas from Diesel
engines promotes the formation of deposits.
The cause for large quantities of
oil in the intake or charge air can
be, for example:
- Malfunctions in the crankcase
vent (oil separator, engine ventilation valve, for example)
- Increased blow-by 1) gas quantity due to increased wear at
the pistons and cylinders
- Malfunctions at the turbocharger (worn out bearings,
clogged oil return line, for
example)
- Exceeding of the specified
maintenance intervals (inadequate oil and oil filter change)
- Use of an engine oil quality
which is not suited for the specific application
- Engine oil level which is too
high
- Worn out valve piston seals
respectively guides, thereby
increasing the oil transfer into
the intake channel.

1)

Blow-by: Quantity of leaking gas which during
normal combustion passes past the piston rings
into the crankcase. Due to the presence of the
crankcase vent, these gases are returned to the
engine for combustion.

EGR valve in the Renault Master JD1M (highlighted)

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Diagnosis information
In the case of complaints, malfunctions and damage to the
EGR system, it will be required to
check, besides the components
of the EGR system, also the surroundings.
Malfunctioning sensors can
influence the way in which
the exhaust gas return
system operates.
In the case of the EGR valves
mentioned here, the most frequent causes of malfunctions are
deposits at the valve disk or the
valve seat.
The EGR valve must be checked
and replaced as required.

We do not recommend
cleaning the EGR valve;
when doing so, it might be
damaged.

Pin assignment

6

4

5

(view onto the EGR valve)

2

1

1 Controlled ground
2 Power supply voltage
(+5 Volt)
4 Ground
5 Power supply
(on board voltage)
6 Wiper signal

Quick test
o Pull the plug off from the EGR
valve
o Measure the voltage at the
plug between pin 5 and vehicle
ground. Nominal value: Battery
voltage
o Connect to pins 1 and 5 a DC
voltage of 12 V and switch on
and off alternatingly
Do not inadvertently connect the voltage to pins
2 to 4
o The valve must now audibly
switch.

In many cases an update
for the controller software can remedy problems related to excessive
stickiness.

Please note:
- When removing the EGR valve
turn it slightly within the flange
- When fitting the EGR valve, use
new gaskets
- Do not use any liquid sealants
- Note the specified torque levels
(8 Nm)

If this is not the case, then the
valve is either stuck or defective
and must be replaced.

Checking the resistance
values

Potentiometer
Coil
Potentiometer

Checking the EGR signal from
the controller
- Plug connected
- Engine at operating temperature and running idle
- Measure the voltage between
pin 1 and pin 5. Nominal value:
0 V when idle
- Operate the accelerator and
when doing so, the voltage
must increase. Nominal value:
Up to approximately 5 V
If the nominal value is not
reached, troubleshoot according
to the electric circuit diagram supplied by the vehicle manufacturer.

Checking the wiper voltage
from the EGR potentiometer
for the controller
- Plug connected

o Pull the plug off from the EGR
valve

- Engine at operating temperature and running idle

o Measure the coil resistance at
the EGR valve between pin 1
and pin 5. Nominal value:
8 ? 0.5 Ohm

o Measure the voltage between
pin 6 and engine ground. Nominal value: less than 1.1 V (when
idle)

o Measure the total resistance of
the potentiometer between pin
2 and pin 4.

If the voltage exceeds 1.1 V, then
there is a leak at the valve seat of
the EGR valve and the EGR valve
must be replaced.

Nominal values:
Troubleshooting assistance
for the EGR system in vehicles equipped with Diesel engines
is provided in Service Information
SI 0039.

Coil
Potentiometer

- 7.22818.38.0; 7.22818.56.0:
4 k Ohm ? 40%.
- 7.22818.45.0:
3.7 k Ohm ? 30%.
If a nominal value is not reached,
the EGR valve must be replaced.

o Operate the accelerator. When
doing so, the voltage must
increase to approximately 3 V
or more.
If the voltage increase is less,
then the EGR rate is too low, i.e.
the EGR opening is too small due
to deposits and the EGR valve
must be replaced.
If no voltage increase can be
measured, then the plunger of the
EGR valve has seized and the EGR
valve must be replaced.

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