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Coolant temperature sensor
31 Refer to Chapter 3, Section 7.
Electronic control unit (ECU)
32 Refer to Part B, Section 11.
Fuel injection system fuses and
relays
33 Refer to Part B, Section 11.
12 Inlet manifold - removal and
refitting
3
Note: The following procedure is applicable to
all three multi-point fuel injection systems, but
slight differences in component layout may be
encountered.
Removal
1 Disconnect the battery negative lead.
2 Slacken the retaining clip, then disconnect
the inlet duct from the throttle housing and
recover the sealing ring.
3 Disconnect the throttle inner cable from the
throttle cam, then withdraw the outer cable
from the mounting bracket, along with its flat
washer and spring clip.
4 Depress the retaining clip and disconnect
the wiring connector from the throttle position
switch.
5 Release the retaining clips (where fitted)
and disconnect all the relevant vacuum and
breather hoses from the manifold. Make
identification marks on the hoses to ensure
that they are connected correctly on refitting.
6 Bearing in mind the information given in
Section 4, slacken the retaining clips and
disconnect the fuel feed and return hoses
from the fuel rail.
7 Depress the retaining tangs and disconnect
the wiring connectors from the four injectors.
Free the wiring from any relevant retaining
clips and position it clear of the manifold.
8 Where necessary, undo the retaining bolts
and remove the support bracket from the
underside of the manifold.
9 Undo the manifold retaining nuts and
withdraw the manifold from the engine
compartment. Recover the four manifold seals
and discard them; new ones must be used on
refitting.
Refitting
10 Refitting is a reverse of the relevant
removal procedure, noting the following
points:
a) Ensure that the manifold and cylinder
head mating surfaces are clean and dry,
then locate the new seals in their recesses
in the manifold.
b) Ensure that all relevant hoses are
reconnected to their original positions and
are securely held (where necessary) by
the retaining clips.
c) Adjust the throttle cable as described in
Section 3.
Fuel system - multi-point fuel injection engines 4C•5
4C