Vauxhall Zafira swirl valve

the swirl flaps are located in the inlet manifold,there is a vacuum operated actuator bolted onto the manifold with an electric solenoid drawing vacuum which is located at the front of the car next to the radiator,these actuators can fail so check the vacuum pipes going to the actuator are fitted ok and not damaged,if you have to clean the swirl flaps properly you need to remove the inlet manifold which involves removing the timing belt and high pressure fuel pump for access which is a pretty involving task

From Vauxhall forum re. swill flaps



Field Remedy: 2065
Subject: Engine Z19DTH/ J - Intake manifold, swirl flaps, actuator out of order, DTC: P1109, P2075 set
Models: Engines: Option:
Vectra-C 2004...,Signum 2004...,Zafira-B 2005...,Astra-H 2004... Z19DTH,Z19DTH,Z19DTH,Z19DTH| Z19DTJ
Complaint: Customer complaint about lack of power and SVS lamp on. The following trouble codes might be set based on the installed application:a.) EDC16 C9 (2-actuator strategy, i.e. pressure sensor as well as pressure regulator fitted at fuel rail) TECH 2 shows DTC: P1109 or sometimes P2279(11).b.) EDC16 C39 (1-actuator strategy, i.e. only pressure sensor fitted at fuel rail). TECH 2 shows DTC: P2075.
Cause: Problem might be caused due to sticking swirl flap or due to malfunction from swirl flap actuator.
Production: Several modifications introduced since SOP. Latest improvement was a design change at the swirl flaps itself in order to make the flaps more robust and to prevent them from sticking. Engine-BP: Z19DTH17228334 (28.02.2007).

Remedy:
In case of customer complaint perform TECH 2 swirl flap actuator
test in order to evaluate the problem.
Recommendation:
Remove upper beauty cover in order to see the swirl flap linkage
mechanism. Switch on ignition (no need to start the engine) take
TECH 2 out of the vehicle to the engine bay. Change into swirl flap
actuator test and perform test. If linkage does not move at all but
the actuator motor itself is working (audible) it might be that:
--->>> either the internal actuator motor mechanism is faulty
--->>> or the pin ball from the actuator lever has come off, the
lever is bent or has just slipped off from the actuator joint.
In this case the actuator needs to be replaced.
Note: If the modified intake manifold (=swirl flaps) is already
installed please replace only the actuator.
In any other case it might be that the swirl flap linkage got stuck
during the actuator test or does not move completely from one end to
another. If this happens the intake manifold needs replacement together
with actuator.
The procedure for replacement of the intake manifold has been changed
and will be published on TIS 2000 as soon as possible. In Advance the
new procedure is given below in this document.
Working Procedure:

Note:
It is not necessary to disassemble the toothed belt.
Important:
When working on the fuel system it is essential to pay attention to
cleanliness as even the smallest dirt particles can lead to faults
in engine operation or in the fuel system. Open fuel connections
must be sealed with appropriate plugs from the Opel Parts Catalogue
(catalogue number: 45 06 154 / part number: 9201697). Sealing plugs
are only intended to be used once.
1. Open bonnet.
2. Disconnect battery
- detach ground clamp
– loosen nut
3. Only Zafira-B: Remove bulkhead lock part
- see working procedure "Bulkhead Lock Part, Remove and Install",
group "A", Service Instruction Zafira-B.
(Document Number 01101113)
4. Raise vehicle completely.
5. Remove lower engine cover.
6. Place collecting container below vehicle.
7. Drain coolant (Picture I)
- open drain plug (1) at radiator
- collect coolant
- close drain plug
8. Lower vehicle completely.
9. Remove engine cover.
10. Remove air filter housing
Astra-H:
- see working procedure "Air Cleaner Housing, Remove and Install",
group "J", Service Instruction Astra-H.
(Document Number 00701767)
Zafira-B:
- see working procedure "Replacing the air cleaner housing",
group "J", Service Instruction Zafira-B.
(Document Number 01101348)
Vectra-C:
- see working procedure "Air Cleaner Housing, Remove and Install
(Z 19 DTH)", group "J", Service Instruction Vectra-C.
(Document Number 00602767)
11. Only Vectra-C: Remove right engine damper block
- see working procedure "Right Engine Damping Block, Replace
(Z 19 DTH)", group "J", Service Instruction Vectra-C.
(Document Number 00602794)
12. Detach fuel return damping case (2, Picture II)
- remove fuel return line (4) with KM-796-A
- remove 2x hose (1)
- release 2 clamp
- remove oil leak line (3)
- unscrew 2x bolt (arrows)
13. Bare high pressure pump (Picture III)
Important:
Close fuel connections of injectors and rail with closing caps
from kit (catalogue number: 45 06 154 / part number: 9201697)
after removing pressure lines!
- disconnect wiring harness connector high pressure pump (1)
- remove high pressure line (3) high pressure pump to rail
- loosen 2x lock nut
Note:
Close Rail, high pressure pump and high pressure line with closing
caps from kit (catalogue number: 45 06 154 / part number: 9201697 ).
- Remove fuel feed line (2) high pressure pump
- Loosen clamp
14. Detach engine vent hose (2, Picture IV)
- release 2x clamp
- unclip from bracket (1)
15. Remove EGR valve
- remove metal tube EGR valve (5)
- disconnect wiring harness plug (4)
- unscrew 2x nut (3)
- remove bracket (2)
- unscrew 2x bolt (1)
- unscrew 2x stud bolt
16. Remove brake servo vacuum line (Picture VI)
- release quick-release fitting (1)
- release clip (2)
17. Remove charge air hose (1, Picture VII).
18. Remove engine ventilation line (1, Picture VIII)
- remove engine ventilation hose
– release quick fitting
- remove 2x nut (2)
- detach 2x wiring harness (arrows)
19. Only Vectra-C: Release coolant pipe
- remove nut
- release wiring harness
- release 2x coolant hose
- remove 2x screw
20. Remove oil separator/vacuum reservoir bracket (1, Picture IX)
- loosen clamp
- detach wiring harness
- remove wiring harness
– Detach 4x cable strap
– Replace cable strap
- unscrew 3 bolt
- unscrew 2x nut
21. Detach engine management wiring harness (1, Picture X)
- disconnect 10x wiring harness connector
– Swirl valve actuator
– Load pressure sensor
– EGR valve
– Coolant temperature sensor
– Rail pressure sensor
– Pressure regulator (not fitted since MY 07)
– 4x sheathed glow plugs
- unclip 4x bracket
- lay wiring harness aside
22. Detach coolant pipe (2) from intake manifold (Picture X)
- detach 2x coolant hose from coolant pipe
– release 2x clamp
- remove coolant hose from coolant compensation tank
– release clamp
- remove 3x screw
23. Remove upper toothed belt cover (Picture XI)
- remove 5x bolt (1) with EN-47631
- remove 2x bolt (2)
- detach wiring harness
24. Adjust high pressure pump (Picture XII)
Important:
The retaining bolts need to have a length of 40 mm, the length of
thread has to be 10 mm. Otherwise the sliding of the high pressure
pump pulley on the retaining bolts can not be guaranteed!
- turn steering wheel to right position
- turn crankshaft in direction of engine rotation until retaining
bolts (1) M 6x40 can be installed to bracket of high pressure pump
25. Loosen high pressure pump pulley (Picture XII)
- remove nut (2)
26. Loosen high pressure pump (Picture XIII)
- remove 3x nut (1)
Note:
Place rag below high pressure pump to avoid losing nut or woodruff
key.
27. Remove high pressure pump (Picture XIV)
Important:
Assure that spindle of high pressure pump does not rotate!
Important:
Assure that woodruff key is removed!
- push out high pressure pump completely in conjunction with
EN-46790 (1), counterhold with flat wrench (2)
28. Remove stud bolt from bracket high pressure pump (arrow, Picture XV).
29. Remove inlet port (1) from throttle body housing (Picture XVI)
- remove 2x screw (2)
30. Remove throttle body housing (1, Picture XVII)
- remove 3x screw (2)
31. Remove intake manifold (1, Picture XVIII)
- unscrew 9x nuts
32. Remove attaching parts
Note:
When replacing the intake manifold, the swirl valve actuator must
be replaced at the same time.
- detach charge pressure sensor
– unscrew bolt
- detach swirl valve actuator
– detach linking rod
– remove 2x screw
- remove connecting adapter coolant hose
33. Clean 2x thread
- coolant connection port
34. Fit attaching parts
Note:
When replacing the intake manifold, the swirl valve actuator must
be replaced at the same time.
- attach charge pressure sensor
– tighten bolt
- attach swirl valve actuator
– tighten 2x screw
– attach linking rod
- install connecting adapter coolant hose
– coat with sealant
35. Clean sealing surfaces.
36. Install intake manifold
- insert new gasket
Note:
Clip on 3x to intake manifold.
- tighten 9x new nut 25 Nm
37. Install throttle valve module
- insert new gasket
- tighten 3x bolts
38. Attach intake port to throttle valve module
- replace gasket
Note:
Coat with special grease (white).
- tighten 2x screw
39. Tighten stud bolt in high-pressure pump carrier
Important:
Don’t re-install woodruff key if old high pressure pump is re-used!
Important:
Assure that spindle of high pressure pump does not rotate!
40. Install high pressure pump
- tighten 3x new nut 25 Nm
41. Attach high pressure pump pulley
Important:
Push high pressure pump pulley onto spindle of high pressure pump
by hand!
- tighten nut 50 Nm
Note:
Use new nut.
42. Remove retaining bolts from high pressure pump pulley.
Important:
Check high pressure pump pulley for sites of fracture and cracks!
43. Install upper toothed belt cover
- tighten 5x screw using EN-47631
- tighten 2x screw
- attach wiring harness
44. Attach coolant pipe to inlet manifold
- attach 2x coolant hose to coolant pipe
– attach 2x clamp
- attach coolant hose to coolant reservoir
– attach clamp
- tighten 3x screw 9 Nm
45. Attach engine management wiring harness
- connect 10x wiring harness connector
– swirl valve actuator
– load pressure sensor
– EGR valve
– coolant temperature sensor
– rail pressure sensor
– pressure regulator (not fitted since MY 07)
– 4x sheathed glow plugs
- attach 4x
46. Install oil separator/vacuum reservoir bracket
- replace 2x cable strap
- tighten 3x screw
- tighten 2x nut
- attach engine venting hose
– attach clamp
47. Only Vectra-C: Attach coolant pipe
- tighten 2x screw
- attach wiring harness
- clip in 2x coolant hose
- tighten nut
48. Attach wiring harness oil separator
- attach wiring harness
- attach 4x wiring harness with cable strap
– replace 2x cable strap
49. Install engine venting pipe
- attach engine venting hose
– connect quick fitting
Note:
Catch must be audible.
- tighten 2x nut
- attach 2x wiring harness
50. Install air charging hose
- attach 2x clamp 3,5 Nm
51. Install vacuum line brake booster
- connect quick fitting
Note:
Catch must be audible.
- attach clip
52. Install EGR valve
- tighten 2x stud bolt
Note:
Insert 2x bolts with locking compound (red).
- tighten 2x bolts
- install EGR valve metal tube
- connect wiring harness connector
- tighten 2x nut
– insert bracket
53. Attach engine venting hose
- attach 2x clamp
- attach to bracket
54. Attach new high pressure line to rail
Important:
Old high pressure lines may not be reused!
- remove closing caps
- tighten 2x lock nut
– (M12) 25 Nm
– (M14) 23 Nm
55. Connect wiring harness connector high pressure pump.
56. Attach fuel feed line high pressure pump
- attach clamp
57. Install fuel return damping housing
- tighten 2x screw
- attach fuel return line
– connect quick fitting
Note:
Catch must be audible
- attach fuel line
– attach clamp
- connect leak oil line
58. Only Vectra-C: Install right engine damper block
- see working procedure "Right Engine Damping Block, Replace
(Z 19 DTH)", group "J", Service Instruction Vectra-C.
(Document Number 00602794)
59. Install air filter housing
Astra-H:
- see working procedure "Air Cleaner Housing, Remove and Install",
group "J", Service Instruction Astra-H.
(Document Number 00701767)
Zafira-B:
- see working procedure "Replacing the air cleaner housing",
group "J", Service Instruction Zafira-B.
(Document Number 01101348)
Vectra-C:
- see working procedure "Air Cleaner Housing, Remove and Install
(Z 19 DTH)", group "J", Service Instruction Vectra-C.
(Document Number 00602767)
60. Install engine cover.
61. Raise vehicle completely.
62. Install water draining hose to air filter housing.
63. Install lower engine cover.
64. Lower vehicle completely.
65. Only Zafira-B: Install bulkhead lock part
- see working procedure "Bulkhead Lock Part, Remove and Install",
group "A", Service Instruction Zafira-B.
(Document Number 01101113)
66. Connect battery
- attach ground clamp
– tighten nut
67. Refill coolant.
68. Program volatile memories.
69. Close bonnet.
Spare-Parts: Part-No.: Catalogue-No.:
Inlet manifold 55210201 58 50 180
Gasket, inlet manifold 93179058 8 49 528
Nut, high pressure pump to bracket 93178880 58 19 147
Connection bar 93186274 58 50 540
Valve inlet manifold 93185801 58 50 574
Special nut high pressure pump 93178824 56 36 948
Washer, high pressure pump 93178879 58 19 146
High pressure pipe 93179046 58 20 435
Gasket EGR valve 93181665 58 51 374
Gasket throttle valve body 93179061 8 25 512
Locking compound 90542117 15 10 181
Labour Times: Hours:
Astra-H:

J471500 Replace inlet manifold 2.9
Zafira-B:

J471500 Replace inlet manifold 3.2
Vectra-C:

J471500 Replace inlet manifold 3.5
FunctionalGroup: J - Engine
Complaint Group: 17 - Poor Design
Trouble Code: P1109,P2279(11),P2075

as easy as that.lol.would take it to vauxhall who have correct special tools and equipment if i was you

Obviously if you dont feel confident to do this work , leave it to the professionals . I just supplied the official Vauxhall walk through to help and let you know what you could be getting involved with .