HINO 600 Series P0027 Abnormality in Phasing by Revolution Pulsar Repair

This instruction show you guide on how to diagnose and repair HINO 600 series truck P0027 abnormality in phasing by revolution pulsar trouble.For more information about HINO cases,please refer to:HINO Trouble Repair.

 

Preparations:

Nexiq USB2 Diagnostic Adapter

2024.03 HINO Diagnostic Explorer DX3/DX2 Diagnostic Software Free Download

HINO Trucks EPC Electronic Parts Catalog 2018 2016 Free Download

 

 

Procedures:

Step 1:

Check the DTC detected [HINO DX II]

Set the starter switch to the “LOCK” position.

Connect the vehicle to HINO DXⅡ.

Set the starter switch to the “ON” position.

Select [Engine], and check if any DTC listed below other than P0027 has been detected.

P0101, P04D5, P2101

 

Has a DTC other than P0027 been detected?

Yes,go to diagnosis procedure of a related DTC.

No,go to step 2

 

Step 2:

Inspect the exhaust brake valve piping and hose

Check the piping and hose, connected to the exhaust brake valve, for bend, clogging, and crack.

Was any failure found?

Yes,connect securely,repair if needed

No,go to Step 3

 

Step 3:

Inspect the exhaust brake valve

Check the exhaust brake valve for unease and sticking.

Way any failure found?

Yes,clean the exhaust brake valve.Repalce if needed,after clearing or repalcement,go to Step 4.

No,go to Step 5.

 

Step 4:

Check the DTC detected 2[HINO DX II]

Perform a DPR forced regeneration.

After completion of regeneration, reload the DTC and check if the DTC P0027 has been detected.

Has DTC P0027 detected?

Yes,go to Step 5.

No,Procedure completed.

 

Step 5:

Inspect the exhaust brake valve [HINO DX II]

Warm up the engine. (Coolant temperature: 80 °C {176 °F} or more)

Turn OFF the devices that place load on the engine, such as the air conditioner.

<Inspection procedure>

(1) Select [Engine] on the screen of HINO DXⅡ.

(2) Select [Data monitor Setting] and [Active test Setting].

(3) Select [Target rpm] from [Active test Setting] and set the engine revolution to 980 r/min.

(4) Select [Injection quantity] from [Data monitor Setting].

(5) Turn ON/OFF the exhaust brake switch, and check the difference between the injection quantity of the injector while the exhaust brake is working and the injection quantity when the exhaust brake is not actuated.

 

Engine revolution:980 r/min

Engine coolant temperature:80°C or more

Turn OFF the air conditioner,and other devices that place load on the engine.

 

Do the measurements meet the standard value?(10-18 mm3/st)

There shall be a change in the injection quantity between while the exhaust brake is working and when it is not actuated.

Yes,go to Step 6

No,adjust the butterfly opening of the exhaust brake.

 

Step 6:

Check the DTC detected [HINO DX II]

Perform a DPR forced regeneration.

After regeneration, select [Engine] and check if DTC P0027 has been detected.

Has DTC P0027 been detected?

Yes,replace the engine ECU

No,procedure completed.