Yamaha XSR 900 2022 Service Manual page 466

SELF-DIAGNOSTIC FUNCTION AND DIAGNOSTIC CODE TABLE
DTC Item
P0300 Misfire in multiple
cylinders. Large dif-
ference value in an-
gular velocity of
crankshaft.
P0301 Misfire in cylinder
#1. Large difference
value in angular ve-
locity of crankshaft.
P0302 Misfire in cylinder
#2. Large difference
value in angular ve-
locity of crankshaft.
P0303 Misfire in cylinder
#3. Large difference
value in angular ve-
locity of crankshaft.
Probable cause of
malfunction
• Ignition system
malfunction/abnor-
mal
• Fuel system mal-
function/abnormal
• Ignition system
malfunction/abnor-
mal
• Fuel system mal-
function/abnormal
• Ignition system
malfunction/abnor-
mal
• Fuel system mal-
function/abnormal
• Ignition system
malfunction/abnor-
mal
• Fuel system mal-
function/abnormal
9-60
Vehicle symptom
Engine is difficult to
start.
Loss of engine pow-
er.
Engine idling speed
is unstable.
Drivability is unsta-
ble.
Increased exhaust
emissions.
Engine is difficult to
start.
Loss of engine pow-
er.
Engine idling speed
is unstable.
Drivability is unsta-
ble.
Increased exhaust
emissions.
Engine is difficult to
start.
Loss of engine pow-
er.
Engine idling speed
is unstable.
Drivability is unsta-
ble.
Increased exhaust
emissions.
Engine is difficult to
start.
Loss of engine pow-
er.
Engine idling speed
is unstable.
Drivability is unsta-
ble.
Increased exhaust
emissions.
Fail-safe system
operation
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