Suzuki GSX-R 1000 Service Manual: Exhaust control system operation
The excs is operated by the signal supplied from the ecm. The open/close operation of the excv is performed by the excva which is controlled by the ecm by changing the current direction of the actuator motor. The position sensor (incorporated in the excva) detects the excva movement by measuring the voltage and then the ecm determines the excv opening angle based on the engine rpm and gear positions. Every time the ignition switch is turned on, the excva automatically drives the excv and detects full close/open position voltages and sets the excv to middle position.
Full close
Full open
Exhaust control system description
The exhaust control system (excs) consists of the exhaust control valve (excv),
exhaust control valve actuator
(excva) and exhaust control valve cables (excv cables).
Excv is installed in the ex ...
Other materials:
Rear brake master cylinder parts inspection
Refer to “rear brake master cylinder disassembly and assembly” .
Master cylinder
Inspect the master cylinder bore for any scratches or
other damage.
Piston / rubber parts
Inspect the piston surface for any scratches or other
damage.
Inspect the primary cup, secondary cup and dust boot
...
Ect sensor inspection
Refer to “dtc “c15” (p0115-h/l): ect sensor circuit malfunction” in section
1a .
Inspect the ect sensor in the following procedures:
remove the ect sensor. Refer to “ect sensor removal and installation” .
Connect the ect sensor (1) to the circuit tester and
place it in the o ...
Ignition system check
Remove the spark plugs and
reattach them to the spark
plug caps.
Put the engine stop switch in
the "" position and ignition
switch in the "on" position.
While holding a spark plug
with its base firmly against the
engine, push the electric
starter butt ...