Infiniti F50. Manual — part 557
DUAL MODE MUFFLER
EX-5
C
D
E
F
G
H
I
J
K
L
M
A
EX
DUAL MODE MUFFLER
PFP:20130
Removal and Installation
EBS00LS4
NOTE:
Exhaust control valve is provided in center muffler and not permitted to disassemble.
REMOVAL (CABLE)
NOTE:
Removal and installation procedure is the same on both side of actuator and exhaust control valve.
1.
Remove cable from actuator and exhaust control valve.
●
Loosen lock nut A.
●
Do not loosen positioning nuts B and C.
2.
Remove middle clamp bolt and cable.
INSTALLATION
●
Install in the reverse order of removal.
●
Install cable on cable bracket and then tighten lock nut A to specified torque.
●
To avoid twisting the cable when tightening the lock nut A, hold the positioning nut B or C with a wrench.
●
If the positioning nuts B and C are loosened, place the nut B so that span D becomes 17.5 mm (0.689 in)
to 18.5 mm (0.728 in). Hold the nut B with a wrench and tighten the nut C to specified torque.
NOTE:
Additional adjustment is unnecessary.
REMOVAL (ACTUATOR)
1.
Remove insulator on lower side of actuator.
2.
Disconnect harness connector and cable from actuator.
Refer to
.
1.
Bracket
2.
Cover
3.
Cable
4.
Center muffler
5.
Exhaust control valve
(Do not disassemble.)
6.
Actuator
7.
Muffler control unit
SBIA0404E
PBIC0174E
EX-6
DUAL MODE MUFFLER
3.
Remove actuator.
INSTALLATION
Install in the reverse order of removal.
REMOVAL (MUFFLER CONTROL UNIT)
1.
Open trunk lid, and remove trunk side finisher (right).
2.
Remove muffler control unit fixing bolt.
3.
Disconnect harness connector and remove muffler control unit
along with bracket.
CAUTION:
Do not drop or damage muffler control unit when removing.
INSTALLATION
Install in the reverse order of removal.
PBIC0175E
DUAL MODE MUFFLER
EX-7
C
D
E
F
G
H
I
J
K
L
M
A
EX
Trouble Diagnoses
EBS00LS5
WIRING DIAGRAM
TBWM0176E
EX-8
DUAL MODE MUFFLER
PARTS LOCATION
INSPECTION OF VALVE OPERATION
Check operation of valve and actuator by revving engine.
INSPECTION OF DUAL MODE MUFFLER ACTUATOR INPUT SIGNAL
Check voltage between terminals 1 and 2 of dual mode muffler actu-
ator harness connector and ground.
PBIC0175E
PBIC0177E
When accelerator pedal position sensor opening is below half in no-load condition:
Valve should open at engine revolution above approximate 4,830 rpm.
Valve should close at engine revolution below approximate 4,730 rpm.
When accelerator pedal position sensor opening is over half in loaded condition:
Valve should open at engine revolution above approximate 475 rpm.
Valve should close at engine revolution below approximate 375 rpm.
PBIZ0004J
Terminals
Input
signal
(Exhaust
control valve)
Condition
Voltage V
(+)
(-)
Terminal
(Wire color)
1 (G/Y)
GND
Open
ING ON
Battery voltage
(11 - 14)
0 - 1
2 (G/R)
Close
0 - 1
Battery voltage
(11 - 14)
PBIC0178E
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