Mitsubishi L200. Manual - part 96
TROUBLESHOOTING
DIESEL FUEL
13A-180
DIAGNOSIS PROCEDURE
CAUTION
A high-tension voltage is flowing between the
engine-ECU and the injectors while the engine is
running. Handle them carefully to avoid receiving
electric shocks from the voltage.
STEP 1. M.U.T.-III diagnosis code
• After erasing the diagnosis code through M.U.T.-
III, operate the engine in the warm-up state and
confirm and confirm whether the diagnosis code
is output
Q: Is the diagnosis code set?
YES :
Go to Step 2 .
NO :
Intermittent malfunction (Refer to GROUP
00
− How to Use Troubleshooting/
Inspection Service Points
− How to Cope
with Intermittent Malfunctions ).
STEP 2. Check for No.1 fuel injection pipe
clogged
• Remove the No.1 fuel injection pipe.
• Check whether No.1 fuel injection pipe is clogged
or not.
Q: Is it clogged?
YES :
Clean or replace the No. 1 fuel injection
pipe.
NO :
Replace the No.1 injector. After replacing
the injector, register the injector
identification code and learn fuel injection
(Refer to GROUP 00
− Precautions Before
Service
− What The Common Rail Engine
Learns ). Then go to Step 3 .
STEP 3. M.U.T.-III diagnosis code
• After erasing the diagnosis code through M.U.T.-
III, operate the engine in the warm-up state and
confirm and confirm whether the diagnosis code
is output.
Q: Is the diagnosis code set?
YES :
Replace the engine-ECU. When the engine-
ECU is replaced, write the chassis number
(Refer to GROUP 00
− Precautions Before
Service
− How to Perform Chassis Number
Writing ). After replacing the engine-ECU,
register the injector identification code and
learn fuel injection (Refer to GROUP 00
−
Precautions Before Service
− What The
Common Rail Engine Learns ). After
registering the injector identification code,
the vehicle equipped with the DPF carries
out the forcible DPF regeneration. (Refer to
GROUP 17
− Emission Control − Diesel
Particulate Filter (DPF) System
− Forcible
DPF Regeneration ).
NO :
The check is end.
Code No. P0302: No. 2 Cylinder Injector Malfunction (No Injection)
FUNCTION
• The Engine-ECU, by monitoring the variation in
the engine revolution, detects the non-fuel injec-
tion state.
TROUBLE JUDGMENT
Check Conditions
• During the normal engine operation
• Engine coolant temperature is 80°C or higher.
• Crank angle sensor is normal.
Judgment Criterion
• The variation in the engine revolution is more
than the specified value.
PROBABLE CAUSES
• Failed No. 2 injector
• No. 2 fuel injection pipe clogged
• Failed Engine-ECU
DIAGNOSIS PROCEDURE
CAUTION
A high-tension voltage is flowing between the
engine-ECU and the injectors while the engine is
running. Handle them carefully to avoid receiving
electric shocks from the voltage.
STEP 1. M.U.T.-III diagnosis code
• After erasing the diagnosis code through M.U.T.-
III, operate the engine in the warm-up state and
confirm and confirm whether the diagnosis code
is output
Q: Is the diagnosis code set?