TROUBLE DIAGNOSIS
EC-907
[YD (WITH EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC
5. BLEED AIR FROM FUEL SYSTEM
1. Stop engine.
2. Use priming pump to bleed air from fuel system. Refer to EC-890, "
AIR BLEEDING" .
>> GO TO 6.
6. CHECK IDLE SPEED AGAIN
With CONSULT-II
1. Start engine and let it idle.
2. Select “CKPS·RPM (TDC)” in “DATA MONITOR” mode with CONSULT-II.
3. Read idle speed.
OK or NG
OK >>INSPECTION END
NG >> GO TO 7.
7. DRAIN WATER FROM FUEL FILTER
Drain water from fuel filter. Refer to EC-890, "
WATER DRAINING" .
>> GO TO 8.
8. CHECK IDLE SPEED AGAIN
With CONSULT-II
1. Start engine and let it idle.
2. Select “CKPS·RPM (TDC)” in “DATA MONITOR” mode with CONSULT-II.
3. Read idle speed.
OK or NG
OK >>INSPECTION END
NG >> GO TO 9.
9. CHECK AIR CLEANER FILTER
Check air cleaner filter for clogging or breaks.
OK or NG
OK >> GO TO 10.
NG >> Replace air cleaner filter.725±25 rpm
SEF817Y
725±25 rpm
SEF817Y
BASIC SERVICE PROCEDURE
EC-1221
[YD (WITHOUT EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC
BASIC SERVICE PROCEDUREPFP:00018
Fuel FilterEBS011X6
DESCRIPTION
A water draining cock is on the lower side and a priming pump for bleeding air is on the upper side.
AIR BLEEDING
Pump the priming pump to bleed air.
When air is bled completely, the pumping of the priming pump
suddenly becomes heavy. Stop the operation at that time.
If it is difficult to bleed air by the pumping of the priming pump
(the pumping of the priming pump does not become heavy), dis-
connect the fuel supply hose between the fuel filter and the fuel
gallery. Then, perform the operation described above, and make
sure that fuel comes out. (Use a pan, etc. so as not to spill fuel.
Do not let fuel get on engine and other parts.) After that, connect
the hose, then bleed air again.
Start engine and let it idle for at least 1 minute after performing
air bleeding.
WATER DRAINING
1. Remove the fuel filter, filter bracket, protector assembly from the dash panel as follows.
a. Remove the air cleaner case (upper), air duct assembly, and vacuum hose for brake booster (between the
vacuum pump and vacuum pipe).
CAUTION:
After the duct is removed, cover the opening with gum tape, etc. to prevent foreign object from
getting into the engine during the operation.
b. Remove the mounting nuts on the dash panel, then remove the fuel filter, filter bracket, and protector
assembly from the dash panel.
It is not necessary to disconnect the fuel hose.
2. Using a tool such as a pliers, loosen the water draining cock at
the bottom of the fuel filter.
Loosening drain cock four to five turns causes water to
start draining.
Do not remove drain cock by loosening it excessively.
If water dose not drain properly, move the priming up and down.
CAUTION:
When the water is drained, the fuel is also drained. Use a
pan, etc. to avoid fuel adherence to the rubber parts such as
the engine mount insulator.
Do not over-tighten the water draining cock. This will dam-
age the cock thread, resulting in water or fuel leak.
3. Bleed air of the fuel filter. Refer to EC-1221, "
AIR BLEEDING" .
4. Start the engine.
Fuel Pump Learning Value ClearingEBS011X7
DESCRIPTION
In order to always keep optimum fuel pressure in fuel rail, the ECM controls fuel pump in high precision with
monitoring the signal of fuel rail pressure sensor.
Accordingly, the ECM always learns characteristic value of fuel pump. Fuel Pump Learning Value Clearing is
an operating to clear the value of the fuel pump learning.
It must be performed after the fuel pump is changed. When the ECM is replaced with brand new one, the Fuel
Pump Learning Value Clearing is not necessary to be performed. If the ECM to be replaced has the possibility
of learning the characteristic value of fuel pump, the Fuel Pump Learning Value Clearing is necessary to be
performed after the ECM has been replaced.
OPERATION PROCEDURE
NOTE:
Remove fuel pump without starting engine after performing Fuel Pump Learning Value Clearing.
PBIB1932E
SMA825B
EC-1232
[YD (WITHOUT EURO-OBD)]
TROUBLE DIAGNOSIS
1. INSPECTION START
1. Check service records for any recent repairs that may indicate a related incident.
2. Check the current need for scheduled maintenance, especially for fuel filter and air cleaner filter. Refer to
MA-7, "
PERIODIC MAINTENANCE" .
3. Open engine hood and check the following:
–Harness connectors for improper connections
–Vacuum hoses for splits, kinks, or improper connections
–Wiring for improper connections, pinches, or cuts
4. Start engine and warm it up to the normal operating tempera-
ture.
>> GO TO 2.
2. PREPARATION FOR CHECKING IDLE SPEED
With CONSULT-II
Connect CONSULT-II to the data link connector.
>> GO TO 3.
3. CHECK IDLE SPEED
With CONSULT-II
1. Select “CKPS·RPM (TDC)” in “DATA MONITOR” mode with CONSULT-II.
2. Read idle speed.
OK or NG
OK >>INSPECTION END
NG >> GO TO 4.
4. CHECK FOR INTAKE AIR LEAK
Listen for an intake air leak after the mass air flow sensor.
OK or NG
OK >> GO TO 5.
NG >> Repair or replace.
SEF142I
725±25 rpm
SEF817Y
TROUBLE DIAGNOSIS
EC-1233
[YD (WITHOUT EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC
5. BLEED AIR FROM FUEL SYSTEM
1. Stop engine.
2. Use priming pump to bleed air from fuel system. Refer to EC-1221, "
AIR BLEEDING" .
>> GO TO 6.
6. CHECK IDLE SPEED AGAIN
With CONSULT-II
1. Start engine and let it idle.
2. Select “CKPS·RPM (TDC)” in “DATA MONITOR” mode with CONSULT-II.
3. Read idle speed.
OK or NG
OK >>INSPECTION END
NG >> GO TO 7.
7. DRAIN WATER FROM FUEL FILTER
Drain water from fuel filter. Refer to EC-1221, "
WATER DRAINING" .
>> GO TO 8.
8. CHECK IDLE SPEED AGAIN
With CONSULT-II
1. Start engine and let it idle.
2. Select “CKPS·RPM (TDC)” in “DATA MONITOR” mode with CONSULT-II.
3. Read idle speed.
OK or NG
OK >>INSPECTION END
NG >> GO TO 9.
9. CHECK AIR CLEANER FILTER
Check air cleaner filter for clogging or breaks.
OK or NG
OK >> GO TO 10.
NG >> Replace air cleaner filter.725±25 rpm
SEF817Y
725±25 rpm
SEF817Y
FL-1
FUEL SYSTEM
B ENGINE
CONTENTS
C
D
E
F
G
H
I
J
K
L
M
SECTION
A
FL
FUEL SYSTEM
QR
PREPARATION ........................................................... 2
Commercial Service Tools ........................................ 2
FUEL SYSTEM ........................................................... 3
Checking Fuel Lines ................................................. 3
General Precautions ................................................ 3
FUEL LEVEL SENSOR UNIT, FUEL FILTER AND
FUEL PUMP ASSEMBLY ........................................... 4
Removal and Installation .......................................... 4
REMOVAL ............................................................. 4
INSPECTION AFTER REMOVAL ......................... 7
INSTALLATION ..................................................... 7
INSPECTION AFTER INSTALLATION ................. 8
Disassembly and Assembly ..................................... 8
DISASSEMBLY ..................................................... 8
ASSEMBLY ........................................................... 9
FUEL TANK ...............................................................11
Removal and Installation ......................................... 11
REMOVAL ............................................................ 11
INSTALLATION ................................................... 12
INSPECTION AFTER INSTALLATION ............... 13
SERVICE DATA AND SPECIFICATIONS (SDS) ...... 14
Standard and Limit ................................................. 14
FUEL TANK ......................................................... 14
Tightening Torque ................................................... 14
YD22DDTi
PREPARATION ......................................................... 15
Commercial Service Tools ...................................... 15
FUEL SYSTEM ......................................................... 16
Checking Fuel Lines ............................................... 16
General Precautions ............................................... 16
FUEL FILTER ............................................................ 17
Removal and Installation ........................................ 17
REMOVAL ........................................................... 17
INSTALLATION ................................................... 17
INSPECTION AFTER INSTALLATION ................ 17
Air Bleeding ............................................................ 18
Draining Water from Fuel Filter .............................. 18
FUEL LEVEL SENSOR UNIT ................................... 19
Removal and Installation ........................................ 19
REMOVAL ........................................................... 19
INSPECTION AFTER REMOVAL ....................... 22
INSTALLATION ................................................... 22
INSPECTION AFTER INSTALLATION ................ 22
FUEL TANK .............................................................. 23
Removal and Installation ........................................ 23
REMOVAL ........................................................... 23
INSTALLATION ................................................... 24
INSPECTION AFTER INSTALLATION ................ 25
SERVICE DATA AND SPECIFICATIONS (SDS) ...... 26
Standard and Limit .................................................. 26
Tightening Torque ................................................... 26
FUEL FILTER
FL-17
[YD22DDTi]
C
D
E
F
G
H
I
J
K
L
MA
FL
FUEL FILTERPFP:16400
Removal and InstallationEBS00BLA
REMOVAL
1. Remove air duct, air cleaner case and mass air flow sensor assembly. Refer to EM-133, "AIR CLEANER
AND AIR DUCT" .
2. Remove fuel filter protector.
3. Disconnect fuel hoses at fuel filter bracket.
CAUTION:
Plug the pipe to prevent fuel from draining.
4. Remove fuel filter with fuel filter bracket.
CAUTION:
Do not splash fuel during removal. If fuel is splashed,
immediately wipe it off.
5. Using band-type fuel filter wrench (commercial service tool),
remove fuel filter.
6. Turn fuel filter upside down to drain fuel.
7. Remove drain plug from fuel filter.
INSTALLATION
Note the following, and install in the reverse order of removal.
Replace O-ring on drain plug with new one.
Screw the fuel filter by hand until packing contacts sealing surface of bracket. Then tighten it by turning
approximately 2/3 turn.
After installation, bleed air from fuel line. Refer to FL-18, "Air Bleeding" .
INSPECTION AFTER INSTALLATION
Make sure there is no fuel leakage at connections in the following steps.
Start the engine and rev it up and make sure there is no fuel leakage at connections.
PBIC2501E
SBIA0135E
SBIA0136E
Drain plug
: 4.9 N·m (0.5 kg-m, 43 in-lb)
FL-18
[YD22DDTi]
FUEL FILTER
Air BleedingEBS00BLB
After fuel filter is replaced and after fuel system components are
removed/installed, bleed air from fuel line as follows:
Move priming pump up and down to bleed air from fuel path.
When air is bled, pumping of priming pump becomes heavy stop
operation at that time.
Crank engine until it starts. Do not crank engine for more than
30 seconds.
If engine does not start, stop cranking and repeat step 1 above.
If engine does not operate smoothly after it has started, race it
two or three times.
If air cannot be bled easily (pumping of priming pump does not
become heavy), disconnect feed-side of hose between fuel filter and electronically controlled fuel pump.
After that, operate priming pump and confirm that fuel comes out.
CAUTION:
Prepare a tray to collect fuel. Prevent fuel from adhering to rubber parts, especially the engine
mounting insulator.
Draining Water from Fuel FilterEBS00MRU
1. Prepare a tray at the drain hose open end.
2. Loosen drain cock, and operate priming pump to drain water
from fuel filter.
CAUTION:
Water in filter is drained with fuel. Prepare larger capacity
pan than fuel filter volume.
Drained water is mixed with fuel. Prevent fuel from adher-
ing to rubber parts such as engine mounting insulator.
3. After draining, close drain cock by hand.
CAUTION:
If drain cock is tightened excessively, it may be damaged
and fuel will leak. Do not use tools to tighten drain cock.
4. Bleed air in fuel piping. Refer to FL-18, "
Air Bleeding" .
5. Start engine and make sure there is no fuel leakage.
SBIA0137E
SBIA0138E
PRECAUTIONS
AT-11
D
E
F
G
H
I
J
K
L
MA
B
AT
Converter is contaminated with engine coolant containing antifreeze.
Internal failure of stator roller clutch.
Heavy clutch debris due to overheating (blue converter).
Steel particles or clutch lining material found in fluid filter or on magnet when no internal parts in unit are
worn or damaged — indicates that lining material came from converter.
The torque converter should not be replaced if:
The fluid has an odor, is discolored, and there is no evidence of metal or clutch facing particles.
The threads in one or more of the converter bolt holes are damaged.
Transaxle failure did not display evidence of damaged or worn internal parts, steel particles or clutch plate
lining material in unit and inside the fluid filter.
Vehicle has been exposed to high mileage (only). The exception may be where the torque converter
clutch dampener plate lining has seen excess wear by vehicles operated in heavy and/or constant traffic,
such as taxi, delivery or police use.
EURO-OBD SELF-DIAGNOSIS — EURO-OBD —
A/T self-diagnosis is performed by the TCM in combination with the ECM. The results can be read through
the blinking pattern of the O/D OFF indicator lamp or the malfunction indicator lamp (MIL). Refer to the
table on AT- 4 5 , "
SELF-DIAGNOSTIC RESULT TEST MODE" for the indicator used to display each self-
diagnostic result.
The self-diagnostic results indicated by the MIL are automatically stored in both the ECM and TCM mem-
ories.
Always perform the procedure “HOW TO ERASE DTC” on AT- 4 2 , "
HOW TO ERASE DTC" to com-
plete the repair and avoid unnecessary blinking of the MIL.
The following self-diagnostic items can be detected using ECM self-diagnostic results mode* only when
the O/D OFF indicator lamp does not indicate any malfunctions.
–PNP switch
–A/T 1st, 2nd, 3rd, or 4th gear function
*: For details of EURO-OBD, refer to EC-51, "
ON BOARD DIAGNOSTIC (OBD) SYSTEM" .
Certain systems and components, especially those related to EURO-OBD, may use a new style
slide-locking type harness connector.
For description and how to disconnect, refer to PG-70, "
HARNESS CONNECTOR" .
Wiring Diagrams and Trouble DiagnosisECS004Q4
When you read wiring diagrams, refer to the following:
GI-14, "How to Read Wiring Diagrams"
PG-2, "POWER SUPPLY ROUTING"
When you perform trouble diagnosis, refer to the following:
GI-10, "HOW TO FOLLOW TEST GROUPS IN TROUBLE DIAGNOSES"
GI-23, "How to Perform Efficient Diagnosis for an Electrical Incident"