Yamaha MT-01 T 2005 Service Manual page 363

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
sensor coupler
• Main wire harness ECU coupler
4 Defective cylinder-#2 intake air
pressure sensor.
Symptom Cylinder-#2 intake air pressure sensor: hose system mal-
function (clogged or detached hose).
04 Cylinder-#2 intake air pressure sensor
FUEL INJECTION SYSTEM
Check or maintenance job
• Check the cylinder-#2 intake air
pressure sensor hose condition.
• Repair or replace the sensor
hose.
• Check and repair the
connection.
• Replace it if there is a
malfunction.
• 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
securely.
• Execute the diagnostic mode.
(Code No.04)
• Replace if defective.
Refer to "CHECKING THE
INTAKE AIR PRESSURE
SENSORS" on page 7-106.
7-48
Reinstatement
method
Starting the
engine and
operating it at
idle.