Yamaha XV19SW Service Manual page 393

Fault code No. 26
Diagnostic code No.
Order Item/components and probable
cause
1 Cylinder-#2 intake air pressure sensor
hose
2 Cylinder-#2 intake air pressure sensor
malfunction at intermediate electrical
potential.
3 Connections
• Cylinder-#2 intake air pressure sen-
sor coupler
• Main wire harness ECU coupler
4 Defective cylinder-#2 intake air pres-
sure sensor.
Symptom Cylinder-#2 intake air pressure sensor: hose system mal-
function (clogged or detached hose).
04 Cylinder-#2 intake air pressure sensor
Check or maintenance job
• Check the cylinder-#2 intake air
• Repair or replace the sensor
• Check and repair the connec-
• Replace it if there is a malfunc-
• Check the coupler for any pins
• Check the locking condition of
• If there is a malfunction, repair it
• Execute the diagnostic mode.
• Replace if defective.
7-49
FUEL INJECTION SYSTEM
pressure sensor hose condition.
hose.
tion.
tion.
that may be pulled out.
the coupler.
and connect the coupler se-
curely.
(Code No.04)
Refer to "CHECKING THE IN-
TAKE AIR PRESSURE SEN-
SOR" on page 7-90.
Reinstatement
method
Starting the en-
gine and oper-
ating it at idle.