12 DETECT MALFUNCTIONING PART
Check the following.
+Fuel pump and circuit (Refer to EC-1032.)
+Fuel pressure regulator (Refer to EC-578.)
+Fuel lines
+Fuel filter for clogging
©Repair or replace.
13 CHECK IGNITION TIMING
Perform ªBasic Inspectionº.
Refer to EC-623.
OK or NG
OK©GO TO 14.
NG©Adjust ignition timing.
14 CHECK HEATED OXYGEN SENSOR 1 (FRONT)
Refer to ªComponent Inspectionº, EC-715.
OK or NG
OK©GO TO 15.
NG©Replace heated oxygen sensor 1 (front).
15 CHECK MASS AIR FLOW SENSOR
With CONSULT-II
Check ªMASS AIR FLOWº in ªDATA MONITORº mode with CONSULT-II.
at idling: 2.5 - 5.0 g´m/sec
at 2,500 rpm: 7.1 - 12.5 g´m/sec
With GST
Check mass air flow sensor signal in MODE 1 with GST.
at idling: 2.5 - 5.0 g´m/sec
at 2,500 rpm: 7.1 - 12.5 g´m/sec
OK or NG
OK©GO TO 17.
NG©GO TO 16.
16 CHECK CONNECTORS
Check connectors for rusted terminals or loose connections in the mass air flow sensor circuit or engine grounds.
Refer to EC-679.
OK or NG
NG©Repair or replace it.
17 CHECK SYMPTOM MATRIX CHART
Check items on the rough idle symptom in ªSymptom Matrix Chartº, EC-648.
OK or NG
OK©GO TO 18.
NG©Repair or replace.
DTC P0300 - P0304 NO.4-1CYLINDER MISFIRE, MULTIPLE CYLINDER
MISFIRE
SR20DE
Diagnostic Procedure (Cont'd)
EC-813
SAT652J
+If MI illuminates or blinks irregularly when engine is
running, water may have accumulated in fuel filter. Drain
water from fuel filter. If this does not correct the problem,
perform specified trouble diagnostic procedures.
+After performing each TROUBLE DIAGNOSIS, perform
ªDTC Confirmation Procedureº or ªOverall Function
Checkº.
The DTC should not be displayed in the ª DTC Confirma-
tion Procedureº if the repair is completed. The ªOverall
Function Checkº should be a good result if the repair is
completed.
SEF348N
+When measuring ECM signals with a circuit tester, never
allow the two tester probes to contact.
Accidental contact of probes will cause a short circuit and
damage the ECM power transistor.
+Do not use ECM ground terminals when measuring input/
output voltage. Doing so may result in damage to the
ECM's transistor. Use a ground other than ECM terminals,
such as the ground.
+Install the break-out box between ECM and ECM harness
connectors when measuring ECM input/output voltage.
SEF437Y
+Do not disconnect electronic control fuel injection pump
harness connector with engine running.
+Do not disassemble electronic control fuel injection pump.
If NG, take proper action.
+Do not disassemble injection nozzle.
If NG, replace injection nozzle.
+Even a slight leak in the air intake system can cause seri-
ous problems.
+Do not shock or jar the crankshaft position sensor (TDC).
SEF709Y
+Do not depress accelerator pedal when starting.
+Immediately after starting, do not rev up engine unneces-
sarily.
+Do not rev up engine just prior to shutdown.
PRECAUTIONSYD22DDTI
Engine Fuel & Emission Control System (Cont'd)
EC-1068
Fuel Filter
DESCRIPTIONNLEC0623A water draining cock is on the lower side and a priming pump for
bleeding air is on the upper side.
SEF375Y
AIR BLEEDINGNLEC06241. After the repair, bleed air from the piping by pumping the prim-
ing pump up and down until it becomes heavy.
2. To start the engine, rotate the starter for a maximum of 30
seconds. To start the engine more quickly, crank the engine
while pumping the priming pump (requires two workers).
3. If the engine does not start after rotating the starter for a maxi-
mum of 30 seconds, stop it once, and pump the priming pump
again until it becomes heavy.
4. Rotate the starter again until the engine starts running.
5. After the engine starts, let it idle for at least 1 minute to stabi-
lize the behavior.
+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), disconnect the fuel supply hose between the fuel
filter and the injection pump. 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 one minute after
performing air bleeding.
WATER DRAININGNLEC0625+If the MI lights up (not flashes) during the engine operation,
drain the water as follows. (If fuel filter switch is equipped.)
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. Disconnect the water level warning sensor harness connector.
c. 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 water level warning sensor located under
the fuel filter.
BASIC SERVICE PROCEDUREYD22DDTI
Fuel Filter
EC-1094
JEF377Y
3. Install the fuel filter, filter bracket, and protector assembly tem-
porarily. Then, drain the water by pumping the priming pump
with the filter standing straight.
+Extend the drain hose if necessary.
Water amount when the MI lights up:
65 - 100 m!(2.2 - 3.5 Imp fl oz)
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.
4. Tighten the water draining cock, then install the fuel filter, filter
bracket, protector assembly in the reverse order of removal.
CAUTION:
Do not over-tighten the water draining cock. This will damage
the cock thread, resulting in water or fuel leak.
5. Bleed air of the fuel filter. Refer to EC-1094.
+Start engine and let it idle for at least one minute after
performing air bleeding.
6. Start the engine, then check that the MI goes off. (If fuel filter
switch is equipped.)
BASIC SERVICE PROCEDUREYD22DDTI
Fuel Filter (Cont'd)
EC-1095
9 CHECK AIR CLEANER FILTER
Check air cleaner filter for clogging or braks.
OK or NG
OK©GO TO 10.
NG©Replace air cleaner filter.
10 CHECK FUEL INJECTION NOZZLE
Check fuel injection nozzle opening pressure. Refer to ªInjection Pressure Testº, EC-1086.
OK or NG
OK©GO TO 11.
NG©Replace fuel injection nozzle assembly.
11 CHECK IDLE SPEED AGAIN
With CONSULT-II
1. Start engine and let it idle.
2. Select ªCKPS´RPM (TDC)º in ªDATA MONITORº mode with CONSULT-II.
3. Read idle speed.
SEF817Y
Without CONSULT-II
1. Start engine and let it idle.
2. Check idle speed.
750±25 rpm
OK or NG
OK©INSPECTION END
NG©GO TO 12.
12 CHECK COMPRESSION PRESSURE
Check compression pressure. Refer to EM-164, ªMEASUREMENT OF COMPRESSION PRESSUREº.
OK or NG
OK©GO TO 13.
NG©Follow the instruction of ªMEASUREMENT OF COMPRESSION PRESSUREº.
TROUBLE DIAGNOSIS Ð BASIC INSPECTIONYD22DDTI
Basic Inspection (Cont'd)
EC-1114
ENGINE MECHANICAL
SECTION
EM
CONTENTS
QG
PRECAUTIONS...............................................................5
Parts Requiring Angular Tightening .............................5
Liquid Gasket Application Procedure ..........................5
PREPARATION...............................................................6
Special Service Tools ..................................................6
Commercial Service Tools ...........................................8
NOISE, VIBRATION AND HARSHNESS (NVH)
TROUBLESHOOTING...................................................10
NVH Troubleshooting - Engine Noise .......................10
OUTER COMPONENT PARTS.....................................12
Removal and Installation ...........................................12
MEASUREMENT OF COMPRESSION PRESSURE....16
DRIVE BELTS................................................................17
Checking ....................................................................17
AIR CLEANER...............................................................18
Changing Air Cleaner Filter .......................................18
VISCOUS PAPER TYPE...........................................18
SPARK PLUG................................................................19
Checking and Changing ............................................19
OIL PAN.........................................................................20
Components...............................................................20
Removal .....................................................................20
Installation ..................................................................21
TIMING CHAIN..............................................................22
Components...............................................................22
Removal .....................................................................23
Inspection...................................................................26
Installation ..................................................................27
OIL SEAL.......................................................................31
Replacement ..............................................................31
VALVE OIL SEAL.....................................................31
FRONT OIL SEAL....................................................31
REAR OIL SEAL......................................................32
CYLINDER HEAD..........................................................33
Components...............................................................33
Removal .....................................................................34
Disassembly...............................................................36Inspection...................................................................36
CYLINDER HEAD DISTORTION...............................36
CAMSHAFT VISUAL CHECK....................................36
CAMSHAFT RUNOUT..............................................37
CAMSHAFT CAM HEIGHT.......................................37
CAMSHAFT JOURNAL CLEARANCE........................37
CAMSHAFT END PLAY............................................38
CAMSHAFT SPROCKET RUNOUT...........................38
VALVE GUIDE CLEARANCE....................................38
VALVE GUIDE REPLACEMENT................................39
VALVE SEATS.........................................................40
REPLACING VALVE SEAT FOR SERVICE PARTS....40
VALVE DIMENSIONS...............................................41
VALVE SPRING.......................................................41
VALVE LIFTER AND VALVE SHIM............................41
Valve Clearance.........................................................42
CHECKING.............................................................42
ADJUSTING............................................................43
Assembly ...................................................................45
Installation ..................................................................45
ENGINE ASSEMBLY.....................................................49
Removal and Installation ...........................................49
REMOVAL...............................................................50
INSTALLATION........................................................51
CYLINDER BLOCK.......................................................52
Components...............................................................52
Removal and Installation ...........................................53
Disassembly...............................................................53
PISTON AND CRANKSHAFT....................................53
Inspection...................................................................54
PISTON AND PISTON PIN CLEARANCE..................54
PISTON RING SIDE CLEARANCE............................54
PISTON RING END GAP..........................................54
CONNECTING ROD BEND AND TORSION...............55
CYLINDER BLOCK DISTORTION AND WEAR...........55
PISTON-TO-BORE CLEARANCE..............................56
CRANKSHAFT.........................................................57
BEARING CLEARANCE...........................................57
CONNECTING ROD BUSHING CLEARANCE
(SMALL END)
..........................................................59
REPLACEMENT OF CONNECTING ROD
BUSHING (SMALL END)
..........................................60
FLYWHEEL RUNOUT..............................................60
Assembly ...................................................................60
PISTON..................................................................60
CRANKSHAFT.........................................................61
SERVICE DATA AND SPECIFICATIONS (SDS).........64
General Specifications ...............................................64
Compression Pressure ..............................................64
Belt Deflection............................................................64
Spark Plug .................................................................65
Cylinder Head ............................................................65
Valve ..........................................................................65
VALVE....................................................................65
VALVE SPRING.......................................................65
VALVE LIFTER........................................................66
VALVE CLEARANCE................................................67
VALVE GUIDE.........................................................67
AVAILABLE SHIMS..................................................67
VALVE SEAT...........................................................70
VALVE SEAT RESURFACE LIMIT.............................71
Camshaft and Camshaft Bearing ..............................71
Cylinder Block ............................................................72
Piston, Piston Ring and Piston Pin ...........................73
PISTON..................................................................73
PISTON RING.........................................................73
PISTON PIN............................................................73
Connecting Rod .........................................................74
Crankshaft..................................................................74
Main Bearing..............................................................74
STANDARD.............................................................74
UNDERSIZE............................................................74
Connecting Rod Bearing ...........................................75
STANDARD SIZE....................................................75
UNDERSIZE............................................................75
Bearing Clearance .....................................................75
Miscellaneous Components.......................................75
SR
PRECAUTIONS.............................................................76
Parts Requiring Angular Tightening ...........................76
Liquid Gasket Application Procedure ........................76
PREPARATION.............................................................77
Special Service Tools ................................................77
Commercial Service Tools .........................................79
NOISE, VIBRATION AND HARSHNESS (NVH)
TROUBLESHOOTING...................................................80
NVH Troubleshooting - Engine Noise .......................81
OUTER COMPONENT PARTS.....................................82
Removal and Installation ...........................................82
MEASUREMENT OF COMPRESSION PRESSURE....85
DRIVE BELTS................................................................86
Checking ....................................................................86AIR CLEANER...............................................................88
Changing Air Cleaner Filter .......................................88
VISCOUS PAPER TYPE...........................................88
SPARK PLUG................................................................89
Checking and Changing Spark Plugs .......................89
Checking Ignition Leads ............................................90
OIL PAN.........................................................................91
Components...............................................................91
Removal .....................................................................91
Installation ..................................................................93
TIMING CHAIN..............................................................96
Components...............................................................96
Removal .....................................................................97
Inspection.................................................................100
Installation ................................................................100
OIL SEAL.....................................................................105
Replacement ............................................................105
VALVE OIL SEAL...................................................105
FRONT OIL SEAL..................................................105
REAR OIL SEAL....................................................107
CYLINDER HEAD........................................................108
Components.............................................................108
Removal ...................................................................109
Disassembly............................................................. 111
Inspection................................................................. 113
CYLINDER HEAD DISTORTION............................. 113
CAMSHAFT VISUAL CHECK.................................. 114
CAMSHAFT RUNOUT............................................ 114
CAMSHAFT CAM HEIGHT..................................... 114
CAMSHAFT JOURNAL CLEARANCE...................... 115
CAMSHAFT END PLAY.......................................... 115
CAMSHAFT SPROCKET RUNOUT......................... 116
VALVE GUIDE CLEARANCE.................................. 116
VALVE GUIDE REPLACEMENT.............................. 116
VALVE SEATS....................................................... 117
REPLACING VALVE SEAT FOR SERVICE PARTS.. 118
VALVE DIMENSIONS............................................. 119
VALVE SPRING..................................................... 119
HYDRAULIC LASH ADJUSTER.............................. 119
ROCKER ARM, SHIM AND ROCKER ARM GUIDE...120
Assembly .................................................................120
Installation ................................................................123
ENGINE ASSEMBLY...................................................130
Removal and Installation .........................................130
REMOVAL.............................................................131
INSTALLATION......................................................132
CYLINDER BLOCK.....................................................133
Components.............................................................133
Removal and Installation .........................................134
Disassembly.............................................................134
PISTON AND CRANKSHAFT..................................134
Inspection.................................................................134
PISTON AND PISTON PIN CLEARANCE................134
PISTON RING SIDE CLEARANCE..........................135
CONTENTS(Cont'd)
EM-2
PISTON RING END GAP........................................135
CONNECTING ROD BEND AND TORSION.............136
CYLINDER BLOCK DISTORTION AND WEAR.........136
PISTON-TO-BORE CLEARANCE............................137
CRANKSHAFT.......................................................138
BEARING CLEARANCE.........................................138
CONNECTING ROD BUSHING CLEARANCE
(SMALL END)
........................................................141
REPLACEMENT OF CONNECTING ROD
BUSHING (SMALL END)
........................................141
REPLACEMENT OF PILOT CONVERTER (CVT).....141
DRIVE PLATE RUNOUT........................................142
Assembly .................................................................142
PISTON................................................................142
CRANKSHAFT.......................................................143
SERVICE DATA AND SPECIFICATIONS (SDS).......146
General Specifications .............................................146
Compression Pressure ............................................146
Cylinder Head ..........................................................146
Valve ........................................................................147
VALVE..................................................................147
VALVE SPRING.....................................................147
HYDRAULIC LASH ADJUSTER (HLA).....................147
VALVE GUIDE.......................................................148
VALVE SHIM CLEARANCE ADJUSTMENT..............148
AVAILABLE SHIM..................................................149
VALVE SEAT.........................................................150
Camshaft and Camshaft Bearing ............................151
Cylinder Block ..........................................................152
Piston, Piston Ring and Piston Pin .........................153
PISTON................................................................153
PISTON RING.......................................................153
PISTON PIN..........................................................153
Connecting Rod .......................................................154
Crankshaft................................................................155
Main Bearing............................................................156
STANDARD...........................................................156
UNDERSIZE..........................................................156
Connecting Rod Bearing .........................................156
STANDARD SIZE..................................................156
UNDERSIZE..........................................................156
Bearing Clearance ...................................................157
Miscellaneous Components.....................................157
YD
PRECAUTIONS...........................................................158
Parts Requiring Angular Tightening .........................158
Liquid Gasket Application Procedure ......................158
PREPARATION...........................................................159
Special Service Tools ..............................................159
Commercial Service Tools .......................................161
NOISE, VIBRATION AND HARSHNESS (NVH)
TROUBLESHOOTING.................................................163
NVH Troubleshooting - Engine Noise .....................163MEASUREMENT OF COMPRESSION PRESSURE..164
DRIVE BELTS..............................................................166
Inspection.................................................................166
Adjustment ...............................................................166
AIR CONDITIONER COMPRESSOR BELT..............167
ALTERNATOR & WATER PUMP BELT...................167
Removal ...................................................................167
Installation ................................................................168
AIR CLEANER.............................................................169
Changing Air Cleaner Filter .....................................169
VISCOUS PAPER TYPE.........................................169
OIL PAN.......................................................................170
Components.............................................................170
Removal ...................................................................170
Installation ................................................................172
TIMING CHAIN............................................................175
Secondary Timing Chain .........................................175
REMOVAL.............................................................175
INSPECTION.........................................................177
INSTALLATION......................................................177
Primary Timing Chain ..............................................180
REMOVAL.............................................................181
INSPECTION.........................................................183
INSTALLATION......................................................183
INTAKE MANIFOLD....................................................188
Removal and Installation .........................................188
PREPARATIVE WORK...........................................188
FUEL PIPING........................................................189
INTAKE MANIFOLD...............................................189
EGR VOLUME CONTROL VALVE...........................189
WATER HOSE.......................................................189
Inspection.................................................................190
INTAKE MANIFOLD...............................................190
SWIRL CONTROL VALVE......................................190
CATALYST..................................................................191
Removal and Installation .........................................191
PREPARATIVE WORK...........................................191
THREE WAY CATALYST.......................................191
GUSSET...............................................................192
EXHAUST MANIFOLD, TURBOCHARGER...............193
Removal and Installation .........................................193
PREPARATIVE WORK...........................................193
EXHAUST MANIFOLD AND TURBOCHARGER.......193
EXHAUST MANIFOLD GASKET.............................194
Disassembly and Assembly .....................................194
TURBOCHARGER.................................................194
Inspection.................................................................195
EXHAUST MANIFOLD...........................................195
TURBOCHARGER.................................................195
ROCKER COVER........................................................198
Removal and Installation .........................................198
PREPARATIVE WORK...........................................198
ROCKER COVER..................................................198
CYLINDER HEAD........................................................200
CONTENTS(Cont'd)
EM-3