Yamaha 2006 FJR1300A Service Manual page 472

Fault code No. 32
Diagnostic code No.
Order Item/components and probable
cause
1 Connections
• O sensor coupler
2
• Relay unit coupler
• Wire harness ECU coupler
• Sub-wire harness coupler
• Front cowling wire harness coupler
2 Open or short circuit in wire harness,
sub-wire harness and/or front cowling
wire harness.
3 Defective O
2
4 Excessive volume of fuel injected by
injector.
Symptom The amount of air-fuel ratio feedback compensation is
maintained continuously in the vicinity of the lower limit
(rich air-fuel ratio).
01 Throttle position sensor
sensor
FUEL INJECTION SYSTEM
Check or maintenance job
• Check the coupler for any pins
that may be pulled out.
• Check the locking condition of
the coupler.
• If there is a malfunction, repair it
and connect the coupler se-
curely.
• Repair or replace if there is an
open or short circuit.
• Between O sensor coupler and
2
ECU coupler.
(black/blue–black/blue)
(gray/white–gray/white)
• Between O sensor coupler and
2
relay unit coupler.
(red/blue–red/blue)
• Between O sensor coupler and
2
sub-wire harness coupler.
(black–black)
Replace if defective. (Unable to
output a rich signal)
• Check the injector.
• Check the fuel pressure.
Refer to "CHECKING THE
FUEL PRESSURE" on page
7-7.
8-69
Reinstatement
method
Starting the en-
gine, warming it
up until the
coolant temper-
ature is 60 °C
or more, and
then running it
between 2000–
3000 r/min un-
til the engine
trouble warn-
ing light turns
off.