How to Solve HINO J05E Engine P007B Intake Air Temperature Sensor Error

Here is the instruction show you guide on how to solve HINO J05E engine P007B intake air temperature sensor error.

 

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This Shop Talk Contains the Criteria for the Following Conditions:

1 At Engine Startup

2 While Driving (1

3 While Driving (2)

 

At Engine Startup:

Technical Description:

1) The interco0ler outlet temperature sensor, which is installed downsteam of the boost pressure sensor constantly measures the intake temperature at the intercooler outlet

 

Description of Malfunction:

1 The intake temperature at the intercooler outlet cannot be correctly recognized.

 

DTC Set Condition:

1 DTC Detection Condition:

1. a) Starter key”ON”.
2. b) The engine speed is 1000 r/min or less.
3. c) Engine coolant temperature is in the range of -30 to 55 °C (-22 to 131 °F).
4. d) The battery voltage is in the range of 10 to 16 V.e) The engine is stopped, or the engine speed remains at 500 r/min or more for 5 seconds or more.

 

Judgement Criteria:

2 Judgement Criteria:

Judged when the average temperature of the air intake temperature sensor (built in the air flow meter) and the intercooler outlet temperature sensor is 30 °C (86 °F) or more or more while the average temperature of the intercooler outlet temperature sensor and the intake manifold temperature sensor is 30 °C (86 °F) or more.

 

Indication, Warning or System Control Regulation When The DTC Is Set:1)MIL:ON2) SVS light: OFF

Symptoms On The Vehicle The DTC Is Set:1) Symptoms On The Vehicle Due To Backup Control (Fail Safe Function):

1. a) None

2) Symptoms On The Vehicle Due To Malfunction:a) None

Pre-Inspection Work:1) Check that the battery voltage is in the normal range.

After-Inspection Work:1) Clear all past DTCs.2) Check that no DTC is detected after test drive.

 

Possible Causes

1 Intercooler outlet temperature sensor malfunction

2 Failure of intake air temperature sensor (with built-in air flow meter)

3 Intake air temperature sensor malfunction

a Sensor is disconnected from measuring site or sensing unit is malfunctioning (due to dirt clogging. damage, etc.)

b Faulty resistance (due to sticking)

4 ECU sensor power supply failure

 

While Driving (1):

Technical Description:

1 The intercooler outlet temperature sensor which s installed downstream of the boost pressure sensor. constanty measures the intake temperature at the intercooler outlet

 

Description of Malfunction:

1) The intake temperature at the intercooler outlet cannot be correctly recognized.

DTC Set Condition:

1) DTC Detection Condition:

The conditions described below remain for 11 seconds or more:

1. a) The battery voltage is in the range of 10 to 16 V.
2. b) The engine speed remains at 500 r/min or more for 5 seconds or more.

The conditions described below remain for 40 seconds or more:

1. a) The engine speed is 1500 r/min or more.
2. b) Fuel injection quantity is 40 mm3/st.cyl or more.
3. c) A change in the engine speed is 156 r/min/sec or less.
4. d) A change in fuel injection quantity is 78 mm2/st.cyl. sec or less
5. e) Atmospheric pressure is higher than 75 kPa.
6. f) Vehicle speed is 13 mph or more.
7. g) Intake air quantity is 45 g/sec or more.
8. h) Intake air temperature sensor (built-in air flow meter) is -10 °C (14 °F) or more.
9. i) Exhaust brake and DPR is not actuated.

 

2 Judgement Criteria:

1. The calculated intercooler efficiency, which is derived from the intake temperature sensor, boost pressure sensor,intercooler outlet temperature sensor, and atmospheric pressure sensor, is greater than 140%.

 

Reset Condition:

1) After restoration to normal condition

Indication, Warning or System Control Regulation When The DTC Is Set:1) MIL:ON2) SVS light: OFF

Symptoms On The Vehicle The DTC Is Set:1) Symptoms On The Vehicle Due To Backup Control (Fail Safe Function):a) None

2) Symptoms On The Vehicle Due To Malfunction:a) None

Pre-Inspection Work:1) Check that the battery voltage is in the normal range.

After-Inspection Work:

1 Clear all past DTCs.

2 Check that no DTC is detected after test drive.

 

Possible Causes

1) Intercooler outlet temperature sensor malfunction

2) Failure of intake air temperature sensor (with built-in air flow meter)

3) Boost pressure sensora) Sensor is disconnected from measuring site or sensing unit is malfunctioning (due to dirt clogging, damage, etc.)b) Faulty resistance (due to sticking)

4) ECU sensor power supply failure

 

While Driving (2):

Technical Description:

• The intercooler outlet temperature sensor, which is installed downstream of the boost pressure sensor,constantly measures the intake temperature at the intercooler outlet.

Description of Malfunction:

1) The intake temperature at the intercooler outlet cannot be correctly recognized.

DTC Set Condition:

1) DTC Detection Condition:

The conditions described below remain for 11 seconds or more:a) The battery voltage is in the range of 10 to 16 V.b) The engine speed remains at 500 r/min or more for 5 seconds or more.

The conditions described below remain for 40 seconds or more:a) The engine speed is 1500 r/min or more.b) Fuel injection quantity is 40 mm2/st.cyl or more.c) A change in the engine speed is 156 r/min/sec or less.d) A change in fuel injection quantity is 78 mm2/st.cyl.sec or less.e) Atmospheric pressure is higher than 75 kPa.

1. f) Vehicle speed is 13 mile/h or more.
2. g) Intake air quantity is 45 g/sec or more.
3. h) Intake air temperature sensor (built-in air flow meter) is -10 °C (14 °F) or more.
4. i) Exhaust brake and DPR are not actuated..

 

2) Judgement Criteria:

162. a) Judged when the calculated EGR cooler efficiency is less than 65%,b The difference between the intake manifold air take temperature and the actual intake air temperature is lower thanthe specified value (ess than 10 °C (50 °R when the EGR rate is 0%, less than 17°C 162.6 °R when the EGR rate is 20% and less than 60 °C (140 °F} when the EGR rate is 60%), and

The calculated intercooler efficiency is lower than the specified value (less than 45% when the vehicle speed is 13 mile/h or less than 65% when the vehicle speed is 25 mile/h).

 

Reset Condition:

1) After restoration to normal condition

Indication, Warning or System Control Regulation When The DTC Is Set:1) MIL:ON

2) SVS light: OFF

Symptoms On The Vehicle The DTC Is Set:

1) Symptoms On The Vehicle Due To Backup Control (Fail Safe Function):

a)None

2) Symptoms On The Vehicle Due To Malfunction:a) None

 

Pre-Inspection Work:

1) Check that the battery voltage is in the normal range.

 

After-Inspection Work:

1) Clear all past DTCs.

2) Check that no DTC is detected after test drive.

 

Possible Causes

1) Intercooler outlet temperature sensor malfunction2) Failure of intake air temperature sensor (with built-in air flow meter)

3) Intake manifold temperature sensor malfunction

4) Boost pressure sensor

1. a) Sensor is disconnected from measuring site or sensing unit is malfunctioning (due to dirt clogging, damage, etc.)
2. b) Faulty resistance (due to sticking)

5) ECU sensor power supply failure

 

More case for HINO please refer to:HINO Trouble Repair