Page 335 of 1007
FUEL DELIVERY SYSTEM - PETROL
19-2-14 REPAIRS
Sensor - heated oxygen (H02S) - front -
K1.8
$% 19.22.16
Remove
1.Release and disconnect HO2S multiplug.
2.Release HO2S harness from clip on cylinder
block.
3.Using a 22 mm crowsfoot spanner, remove
HO2S.Refit
1.Clean HO2S, sealing washer and mating faces.
2.Fit HO2S and tighten to 55 Nm (41 lbf.ft).
3.Connect HO2S multiplug and secure to support
bracket.
4.Secure HO2S harness to cylinder block clip.
Page 336 of 1007
FUEL DELIVERY SYSTEM - PETROL
REPAIRS 19-2-15
Sensor - heated oxygen (H02S) - pre-
catalyst - RH - KV6 - Non NAS
$% 19.22.17
Remove
1.Raise front of vehicle.
WARNING: Do not work on or under a
vehicle supported only by a jack. Always
support the vehicle on safety stands.
2.Remove LH front road wheel.
3.Release RH HO2S multiplug from coolant rail
bracket and disconnect multiplug.
4.Remove HO2S from RH exhaust manifold.Refit
1.Clean HO2S and exhaust manifold mating
face.
2.Fit HO2S and tighten to 55 Nm (41 lbf.ft).
3.Connect RH HO2S multiplug, secure multiplug
in coolant rail bracket.
4.Fit LH front road wheel and tighten nuts to 115
Nm (85 lbf.ft).
5.Remove stands and lower vehicle.
M30 0996
Page 337 of 1007

FUEL DELIVERY SYSTEM - PETROL
19-2-16 REPAIRS
Sensor - heated oxygen (H02S) pre-
catalyst - RH - KV6 - NAS
$% 19.22.17
Remove
1.Disconnect battery earth lead.
2.Remove engine acoustic cover.
+ ENGINE - K SERIES KV6, REPAIRS,
Cover - engine acoustic.
3.Release and disconnect HO2S multiplug.
4.Release HO2S harness from clips.
5.Remove HO2S.
Refit
1.Clean HO2S and mating face.
2.Fit H02S and tighten to 55 Nm (40 lbf.ft).
3.Connect H02S multiplug and fit to bracket.
4.Fit harness into clips.
5.Fit engine acoustic cover.
+ ENGINE - K SERIES KV6, REPAIRS,
Cover - engine acoustic.
6.Connect battery earth lead.
Sensor - mass air flow (MAF) - NAS
$% 19.22.25
Remove
1.Disconnect battery earth lead.
2.Remove engine acoustic cover.
+ ENGINE - K SERIES KV6, REPAIRS,
Cover - engine acoustic.
3.Disconnect multiplug from MAF sensor.
4.Release clip and remove MAF sensor.
Refit
1.Fit MAF sensor and secure with clip.
2.Connect multiplug to MAF sensor.
3.Fit engine acoustic cover.
+ ENGINE - K SERIES KV6, REPAIRS,
Cover - engine acoustic.
4.Connect battery earth lead.
M19 3483
M19 3482
M19 3480
Page 339 of 1007

FUEL DELIVERY SYSTEM - PETROL
19-2-18 REPAIRS
4.Disconnect idle air control valve (IACV) hose
from throttle housing.
5.Disconnect multiplug from throttle position
sensor.
6.Release clip and disconnect breather hose
from throttle housing.
7.Release throttle cable adjusting nut from
abutment bracket.
8.Disconnect throttle cable from throttle cam.
9.Remove 4 bolts securing throttle housing to
inlet manifold.
10.Remove throttle housing.
11.Remove and discard 'O' ring from throttle
housing.Refit
1.Clean mating faces of throttle housing and inlet
manifold.
2.Lubricate new 'O' ring with silicone grease and
fit to throttle housing.
3.Position throttle housing to inlet manifold, align
harness bracket and fit bolts finger tight.
4. Tighten bolts in the sequence shown using the
following procedure.
aTighten to 4 Nm (3 lbf.ft).
bBack off one flat.
cTighten to 9 Nm (7 lbf.ft).
5.Connect throttle cable to throttle cam.
6.Locate throttle cable adjusting nut in abutment
bracket.
7.Connect breather hose to throttle housing and
secure with clip.
8.Connect multiplug to throttle position sensor.
9.Fit IACV hose and align orientation marks.
10.Fit lid to air cleaner and secure clips.
11.Connect air intake hose to throttle housing and
secure with clip.
12.Connect battery earth lead.
13.Retune using Testbook.
Page 340 of 1007
FUEL DELIVERY SYSTEM - PETROL
REPAIRS 19-2-19
Throttle housing - KV6 - Non NAS
$% 19.22.45
Remove
1.Disconnect battery earth lead.
2.Remove engine acoustic cover.
+ ENGINE - K SERIES KV6, REPAIRS,
Cover - engine acoustic.
3.Depress locking collars and release engine
breather/vacuum pipes from throttle and IACV.
4.Release throttle cable from abutment bracket
and disconnect cable from throttle body cam.5. Vehicles with cruise control: Disconnect
vacuum hose from cruise control actuator.
6.Disconnect multiplugs from primary TP sensor
and IACV.
7.Remove 4 Torx screws securing throttle body
to inlet manifold chamber, remove throttle
body.
M19 3198
Page 341 of 1007
FUEL DELIVERY SYSTEM - PETROL
19-2-20 REPAIRS
8.Remove and discard throttle body seal from
inlet manifold chamber.
9. Vehicles with cruise control: Disconnect
actuator arm from throttle linkage, remove 3
Torx screws securing actuator support bracket
to throttle body and remove actuator assembly.
10.Remove and discard 2 Torx screws and wave
washers securing primary TP sensor to throttle
body. Remove primary TP sensor and
specification plate.
CAUTION: Do not twist or apply leverage to
throttle position sensor.11.Remove 2 Allen screws securing IACV to
throttle body, remove IACV and discard gasket.
Page 343 of 1007

FUEL DELIVERY SYSTEM - PETROL
19-2-22 REPAIRS
Throttle housing - KV6 - NAS
$% 19.22.45
Remove
1.Disconnect battery earth lead.
2.Remove engine acoustic cover.
+ ENGINE - K SERIES KV6, REPAIRS,
Cover - engine acoustic.
Pre 03MY illustrated.
3.Disconnect multiplug from MAF sensor.
4.Disconnect multiplug from IAT sensor.
5.Release clip and disconnect vacuum enhancer
from intake hose.
Pre 03MY illustrated.
6.Disconnect engine breather pipe from intake
hose.
7.Disconnect injector air supply pipe from intake
hose.Pre 03MY illustrated.
8.Disconnect multiplug from throttle body.
9.Release clip and remove intake hose and MAF
sensor assembly.
10.Remove 4 Torx screws securing throttle body.
11.Remove throttle body and discard gasket.
Refit
1.Clean throttle body and mating face.
2.Using a new seal, fit throttle body and tighten
Torx screws to 7 Nm (5.2 lbf.ft).
3.Connect multiplug to throttle body.
4.Fit intake hose assembly and secure with clip.
5.Connect engine breather pipe.
6.Connect injector air supply pipe.
7.Connect vacuum enhancer and secure with
clip.
8.Connect IAT sensor multiplug.
9.Connect multiplug to MAF sensor.
10.Fit engine acoustic cover.
+ ENGINE - K SERIES KV6, REPAIRS,
Cover - engine acoustic.
11.Connect battery earth lead.
Page 344 of 1007

FUEL DELIVERY SYSTEM - PETROL
REPAIRS 19-2-23
Variable induction system (VIS) balance
motor - KV6
$% 19.22.64
This procedure also covers the VIS power valve
motor, 19.22.65.
Remove
1.Disconnect battery earth lead.
2.Remove engine acoustic cover.
+ ENGINE - K SERIES KV6, REPAIRS,
Cover - engine acoustic.
aBalance valve VIS motor.
bPower valve VIS motor.
3.Disconnect multiplug from VIS motor to be
removed.
4.Remove 4 screws securing VIS motor to inlet
manifold chamber.
5.Carefully remove VIS motor from inlet manifold
chamber.Refit
1.Clean VIS motor and manifold chamber mating
faces.
2.Ensure that the seal which is already fitted on
the new VIS motor is correctly positioned.
3.Fit VIS motor, carefully locating drive pin into
groove and seal correctly positioned on the
manifold chamber.
4.Fit and tighten screws securing VIS motor to
inlet manifold chamber to 1.7 Nm (1.25 lbf.ft).
5.Connect multiplug to VIS motor.
6.Fit engine acoustic cover.
+ ENGINE - K SERIES KV6, REPAIRS,
Cover - engine acoustic.
7.Connect battery earth lead.