Kubota 07-CR-E5 - Intake Air Volume: Low (DTC P0101; 132-1)

COMMON RAIL SYSTEM
07-CR-E5,07-CR-TE5,07-CR-TIE5, DM
1-S160
(7) Intake Air Volume: Low (DTC P0101 / 132-1)
Behaviour during malfunction:
• Insufficient output
Detection item:
• Engine inlet air mass flow rate lacking (Disconnect turbocharger blower intake hose)
DTC set preconditions:
• Engine is operating [1000 min
-1
(rpm) or higher]
• Coolant temperature is 15 °C (59 °F) or higher (Coolant temperature sensor is normal)
• MAF sensor is normal
• EGR valve is normal
• Intake throttle valve is normal
• Battery voltage is normal
DTC set parameter:
• Engine Inlet Air Mass Flow Rate: less than half of target value
Engine warning light:
•ON
Limp home action by engine ECU (system action):
• Output limitation: Approximately 75 % of normal condition
•EGR stop
• Intake throttle 100 % open
Recovery from error:
• Key switch turn OFF
9Y3200007CRS0198US0
1. Check the Air Intake System
1. Check in accordance with "6.[1] AIR INTAKE SYSTEM
INSPECTION PROCEDURE". (Refer to page 1-S320)
NOTE
• Check if the suction hose of the turbocharger blower does
not come off. If the hose comes off, install it.
• Check the clogging condition of the air cleaner. If it is very
dirty, replace the new one.
9Y3200007CRS0199US0
2. DTC Judgment
1. Place the key switch in the OFF position, and attach the
diagnosis tool to the CAN1 connector.
2. Operate the engine for 2 to 3 minutes with the engine in the idle
status.
3. Check whether the DTC is output or not.
9Y3200007CRS0200US0
OK Go to "2. DTC Judgment".
NG Repair in accordance with "6.[1] AIR INTAKE SYSTEM INSPECTION
PROCEDURE". (Refer to page 1-S320)
(1) Hose Clamp
(2) Hose
(3) Turbocharger
Service
specification
Either DTC is output.
OK Normal.
NG Replace the MAF Sensor or replace the engine ECU.
(a) CAN1 Connector
KiSC issued 03, 2022 A