Yamaha FJR13AG, Service Manual

Page: 606 / 784

FUEL INJECTION SYSTEM
8-129
Fault code No. P2228, P2229
5 Check fuel pressure. Refer to “CHECKING THE
FUEL PRESSURE” on page
7-10. Start the engine and let it idle for
approximately 10 seconds.
Check the condition of the fault
code using the malfunction
mode of the Yamaha diagnostic
tool.
Condition is “Recovered”
→
Go
to item 8 and finish the service.
Condition is “Detected”
→
Go to
item 6.
Also, delete this fault code,
which has a condition of “De-
tected”.
6 Defective O
2
sensor. Check the O
2
sensor.
Replace if defective.
Refer to “ENGINE REMOVAL”
on page 5-3.
Start the engine and let it idle for
approximately 10 seconds.
Check the condition of the fault
code using the malfunction
mode of the Yamaha diagnostic
tool.
Condition is “Recovered”
→
Go
to item 8 and finish the service.
Condition is “Detected”
→
Go to
item 7.
Also, delete this fault code,
which has a condition of “De-
tected”.
7 Malfunction in ECU. Replace the ECU.
Refer to “REPLACING THE
ECU (engine control unit)” on
page 8-250. Service is finished.
8 Delete the fault code and check
that the engine trouble warning
light goes off. Confirm that the fault code has
a condition of “Recovered” us-
ing the Yamaha diagnostic tool,
and then delete the fault code.
Fault code No. P2195
Item
O
2
sensor: Open circuit detected.
Fault code No. P2228, P2229
Item
[P2228] Atmospheric pressure sensor: ground short circuit detect-
ed.
[P2229] Atmospheric pressure sensor: open or power short circuit
detected.
Fail-safe system
Able to start engine
Able to drive vehicle
Diagnostic code No. 02
Tool display Displays the atmospheric pressure.
Procedure
Compare the actually measured atmospheric pressure with the tool dis-
play value.
Item
Probable cause of malfunc-
tion and check
Maintenance job
Confirmation of service com-
pletion