Maf Sensor Abnormality (Dtc P0102 / 132-4, P0103 / 132-3) - Kubota V3800-CR-TE4 Diagnosis Manual

V3800-CR-TE4,V3800-CR-TIE4, DM

(8) MAF Sensor Abnormality (DTC P0102 / 132-4, P0103 / 132-3)

P0102 / 132-4: MAF sensor abnormality (Low side)
Behaviour during malfunction:
• Insufficient output
• Worsening exhaust gas performance
Detection item:
• Open circuit or ground short circuit of sensor / harness
• Failure of sensor
DTC set preconditions:
• Battery voltage is normal
• Starter Switch signal (ECU: B-54 terminal) is not activated
• Sensor supply voltage is normal
DTC set parameter:
• Mass air flow sensor voltage: 0.1 V or less
Engine warning light:
• ON
System action:
• Sensor output: 0.7 times of target value at normal condition [default value]
• Output limitation: Approximately 75 % of normal condition
• EGR stop
• Intake throttle 100 % open
Recovery from error:
• Key switch turn OFF
P0103 / 132-3: MAF sensor abnormality (High side)
Behaviour during malfunction:
• Insufficient output
• Worsening exhaust gas performance
Detection item:
• +B short circuit of sensor / harness
• Failure of sensor
DTC set preconditions:
• Battery voltage is normal
-1
• 700 min (rpm) ≤ engine speed ≤ 2800 min
for 3 secs
• Sensor supply voltage is normal
DTC set parameter:
• Mass air flow sensor voltage: 4.9 V or more in certain operation condition
Engine warning light:
• ON
System action:
• Sensor output: 0.7 times of target value at normal condition [default value]
• Output limitation: Approximately 75 % of normal condition
• EGR stop
• Intake throttle 100 % open
Recovery from error:
• Key switch turn OFF
-1
(rpm) and target intake mass air flow is 460 or less and it continues
1-S151
COMMON RAIL SYSTEM
9Y1200192CRS0676US0
9Y1200192CRS0677US0
KiSC issued 05, 2012 A