1994 JAGUAR XJ6 Workshop Manual

Fuel, Emission Control & Engine Management (V12)
5.2.4 PURGE CONTROL VALVE, RENEW
SRO 17.15.42 'A' BANK
SRO 17.15.43 'B'BANK
SRO 17.15.44 VEHICLE SET
Fig. 1
Remove
. Remove the left-hand headlamp relay cover (1 Fig.l), see Section 15.
. Remove the left-hand air cleaner element (2 Fig.1).
. Remove the right-hand air cleaner assembly (3 Fig.1).
Remove air box mounting bracket (4 Fig.1).
. Disconnect 'A' bank purge valve multi-plug (5 Fig.1).
. Release securing clip (6 Fig.1).
. Disconnect all hoses (7 Fig.1) from valve.
. Remove valve (8 Fig.1).
Refit the purge valve in the reverse order of the removal procedure.
Issue 1 August 1994 8 X300 VSM

Fuel, Emission Control & Engine Management (V12) ~~ ~
5.2.5
SRO
18.30.74 VEHICLE SET
IDLE SPEED CONTROL VALVE/ GASKETS, RENEW
SRO
18.30.73 VALVE- RIGHT HAND
SRO 18.30.76 GASKET
- RIGHT HAND
SRO
SRO 18.30.75 GASKET- LEFT HAND
18.30.72
VALVE
- LEFT HAND
Remove
. Disconnect battery.
. Drain coolant from radiator, see Section 4.2.
. Disconnect idle speed control valve multi-plug.
Disconnect all hoses linked to the idle speed control valve.
. Remove valve.
. Remove gasket.
Refit in the reverse order of the removal procedure.
5.2.6 FUEL CUT-OFF INERTIA SWITCH, RENEW
SRO
18.30.35
Remove
. Disconnect battery.
. Remove the 'A' post lower trim pad.
= Remove the EMS control module, see Section 15.
. Disconnect vehicle harness through-panel connector.
. Disconnect inertia switch multi-plug (Fig. 2).
9 Remove switch.
Refit in the reverse order
of the removal procedure. Fig.
1
Fig. 2
X300 VSM 9 Issue 1 August 1994

10

Exhaust System (AJ16) .
SECTION CON TENTS
SufsSeciion Title SRO Page
i ................ Preliminary Page ....................................................................
6.1.1 ............. Exhaust System. General Description ................................................... 1
i
6.1.2 ............. Diagnosis & Testing .................................................................. 5
6.1.2.1 ........... Symptom Chart ...................................................................... 5
6.1.2.2 ........... Test A. Exhaust Leakage or Noise ....................................................... 5
6.1.2.3 ........... Test B. Restriction in Exhaust System .................................................... 6
X300 VSM i Issue 1 August 1994

ii

1 3 4 S
J30-223
Fig. 1 Plan View, Exhaust System (AJ16 Normally Aspirated)

Exhaust System (AJ16)
9
/ 7 I
3;

Fig. 1 Components of the Exhaust System (AJ16 Normally aspirated)
J?3-Z2l
Heated oxygensensorsarefittedtothedownpipeassembly (1 Fig.l)which isconnectedtothemanifold (2 Fig.1). There
are two sensors for the ROW and Japan (3 Fig.1) and two additional sensors (4 Fig.1) for NAS markets.
The sensors are located upstream and downstream of catalytic converters.
Apart from two heated oxygen sensors, the exhaust system for vehicles destined for the Japanese market are also
fitted with two exhaust gas temperature sensors
(5 Fig.1).
The exhaust system is held in a predetermined position by a fixing arrangement to the manifold by exhaust centre
mountings (6 Fig.l), by rear axis mountings (7 Fig.l), and tail pipe mountings (8 Fig.1).
Clamps (9 Fig.1) used on each slip joint are welded to the pipes and tightened to a higher torque setting than non- welded clamps.
The exhaust system must be free of leaks, binding, grounding and excessive vibrations. These conditions are usually
caused by loose, broken, or misaligned clamps, shields, brackets, or pipes. Should any of these conditions
exist,check the exhaust system components and alignment. Adjust and renew if necessary. Do not attempt to service brackets,
clamps and insulators.
Issue 1 August 1994 2 X300 VSM

Exhaust System (AJ16)
1 2
Fig. 1 Plan View (AJ16 Supercharged)
4 5
i
J30-224
The only visible difference between the normally aspirated engine's exhaust system and the supercharged version (Fig.1) is that the downpipe for the supercharged engine (Fig.1 and next page) is slightly shorter.
The remove
& refit procedures are the same as for the AJ16 normally aspirated.
X300 VSM 3 Issue 1 August 1994