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Fuel system: multi-point injection models 4B.3
2.2 Detach the cold inlet air ducting from
the cowling above the radiator
shield on the exhaust manifold (see illustration)
4 Remove the four retaining nuts, then lift the
air cleaner out of the engine bay and recover
the rubber mountings (see illustration). To
improve access, detach the charcoal canister
vacuum hoses, but make a careful note of the
order of fitting to ensure correct refitting.
Refitting
5 Refit the air cleaner by following the
removal procedure in reverse.
General information
1 The inlet air regulation system consists of a
temperature controlled vacuum switch,
3.3 Disconnect the vacuum hoses from the
temperature switch
2.3 Detach the warm inlet air ducting from
the shield on the exhaust manifold
mounted in the air inlet ducting, a vacuum
operated flap valve and several lengths of
interconnecting vacuum hose. The switch
senses the temperature of the inlet air and
opens when a preset lower limit is reached. It
then directs manifold vacuum to the flap valve
which opens, allowing warm air drawn from
around the exhaust manifold to blend with the
inlet air.
Component renewal
Temperature switch
2 Remove the screw and detach the inlet air
ducting from the top of the throttle body.
3 Disconnect the vacuum hoses from the
temperature switch, noting their order of
connection to ensure correct refitting
(see illustration).
4 Prise the metal retaining clip off the
temperature switch ports, then press the
3.4 The temperature switch (arrowed) is
located inside the throttle body inlet duct
2.4 Remove the four air cleaner
retaining nuts (arrowed)
switch body inside the ducting. Recover the
gaskets (see illustration).
5 Refitting is a reversal of removal.
Flap valve
6 The flap valve is removed with the air
cleaner inlet ducting - remove the screw and
detach the ducting from the front of the air
cleaner.
A
Warning:
!
Removal
Observe the
precautions in Section 1 before
working on any component in
the fuel system.
1 Remove the ducting from the top of the
throttle body, as described in Section 5, to
improve access.
2 Prise off the clip and disconnect the
accelerator cable inner from the throttle valve
spindle plate (see illustrations).
3 Remove the metal clip and extract the
cable outer from the mounting bracket (see
illustration).
4 Refer to Chapter 11 and remove the facia
trim panels from underneath the steering
column.
5 Depress the accelerator pedal slightly, then
unclip the accelerator cable end from the
pedal extension lever.
6 At the point where the cable passes
4.2a Prise off the clip . . . 4.2b . . . and disconnect the accelerator
cable inner from the throttle valve
spindle plate
4.3 Remove the metal clip and extract the
cable outer from the mounting bracket