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ENGINE MANAGEMENT SYSTEM - MEMS
THROTTLE HOUSING - (INCLUDES TUNING)
$% 19.22.45
Remove
1. Disconnect battery earth lead.
1. Disconnect battery earth lead.
2. Remove engine compartment access panel.
2. Remove engine compartment access panel.
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ENGINE COMPARTMENT ACCESS PANEL,
page 76-2-4.
3. Remove nuts securing cross bracing, remove and
3. Remove nuts securing cross bracing, remove and
discard bolt securing cross bracing and remove cross bracing.
4. Release clips securing air intake hose and disconnect
4. Release clips securing air intake hose and disconnect
air intake hose from throttle housing and air cleaner, remove air
intake hose.
5. Disconnect Idle Air Control valve hose from throttle
5. Disconnect Idle Air Control valve hose from throttle
housing.
6. Disconnect multiplug from throttle position sensor.
6. Disconnect multiplug from throttle position sensor.
7. Release clip and disconnect breather hose from
7. Release clip and disconnect breather hose from
throttle housing.
8. Release throttle cable adjusting nut from abutment
8. Release throttle cable adjusting nut from abutment
bracket.
9. Release throttle cable from cam.
9. Release throttle cable from cam.
10. Remove 4 bolts securing throttle housing to inlet
10. Remove 4 bolts securing throttle housing to inlet
manifold.
11. Remove throttle housing and position harness
11. Remove throttle housing and position harness
mounting bracket aside.
12. Remove and discard throttle housing 'O' ring.
12. Remove and discard throttle housing 'O' ring.
Refit
1. Clean throttle housing and inlet manifold mating
1. Clean throttle housing and inlet manifold mating
faces.
2. Lubricate new 'O' ring with silicone grease and fit to
2. Lubricate new 'O' ring with silicone grease and fit to
throttle housing.
3. Position throttle housing to inlet manifold, align
3. Position throttle housing to inlet manifold, align
harness bracket and fit bolts finger tight.
18-22
REPAIRS
4. Tighten bolts in the sequence shown using the
4. Tighten bolts in the sequence shown using the
following procedure. 1. Tighten to 4 Nm. 2. Back off 1 flat. 3.
Tighten to 9 Nm.
5. Connect throttle cable to throttle cam and abutment
5. Connect throttle cable to throttle cam and abutment
bracket.
6. Connect breather hose to throttle housing and
6. Connect breather hose to throttle housing and
secure clip.
7. Connect multiplug to throttle position sensor.
7. Connect multiplug to throttle position sensor.
8. Connect Idle Air Control valve hose to throttle
8. Connect Idle Air Control valve hose to throttle
housing.
9. Adjust throttle cable.
9. Adjust throttle cable.
10. Connect air intake hose to throttle housing and air
10. Connect air intake hose to throttle housing and air
cleaner and secure clips.
11. Position cross bracing, fit nuts and new bolt and
11. Position cross bracing, fit nuts and new bolt and
tighten to 25 Nm.
12. Connect battery earth lead.
12. Connect battery earth lead.
13. Re-tune using MG GDS.
13. Re-tune using MG GDS.
14. Fit engine compartment access panel.
14. Fit engine compartment access panel.
+
ENGINE COMPARTMENT ACCESS PANEL,
page 76-2-4.
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