Page 1793 of 4264
4JA1/4JH1 ENGINE DRIVEABILITY AND EMISSIONS 6E–421
EGR EVRV (Electrical Vacuum
Regulating Valve)
Location
Back of the air cleaner case.
Removal Procedure
1. Disconenct the negative battery cable.
2. Disconnect a EVRV connector from the EVRV.
3. Disconnect two hoses from the EVRV.
4. Loosen two bolts and remove the EVRV from the
bracket.
Installation Procedure
1. Tighten the purge solenoid by tow bolts.
2. Connect a connector to the EVRV.
3. Connect two hoses to the EVRV.
4. Connect the negative battery cable.
NOTE: Verify any DTCs (diagnosis Trouble Code) are
not stored after replacement.
Verify proper connection of two hoses.
Page 1794 of 4264
6E–422 4JA1/4JH1 ENGINE DRIVEABILITY AND EMISSIONS
SPECIAL SERVICE TOOLS
ILLUSTRATION TOOL NO.
TOLL NAME
5-8840-0285-0
(J 39200)
High Impedance
Multimeter
(Digital Voltmeter -DVM)
(1) PCMCIA Card
(2) RS232 Loop Back
Connector
(3) SAE 16/19 Adapter
(4) DLC Cable
(5) TECH 2
5-8840-0385-0
(J 35616-A /BT-8637)
Connector Test Adapter Kit
Breaker Box
5-8840-0279-0
(J 23738-A )
Vacuum Pump with Gauge
Page 1795 of 4264

EXHAUST SYSTEM 6F – 1
SECTION 6F
EXHAUST SYSTEM
TABLE OF CONTENTS
PAGE
Main Data and Specifications ........................................................................................... 6F - 2
General Description........................................................................................................... 6F - 3
Removal and Installation................................................................................................... 6F - 4
Inspection and Repair ....................................................................................................... 6F - 6
General Description........................................................................................................... 6F -7
EGR System Diagram ........................................................................................................ 6F 9
Inspection ........................................................................................................................... 6F-11
EGR Cooler (4JA1TC/4JH1TC Euro-III model) ................................................................. 6F-12
Turbocharger ..................................................................................................................... 6F -15
Main Data and Specifications ....................................................................................... 6F -15
General Description........................................................................................................... 6F -16
Inspection and Repair ....................................................................................................... 6F -17
Special Tools...................................................................................................................... 6F -19
IHI Service Network ........................................................................................................... 6F -20
Page 1796 of 4264
6F – 2 EXHAUST SYSTEM
MAIN DATA AND SPECIFICATIONS
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Page 1797 of 4264
EXHAUST SYSTEM 6F – 3
GENERAL DESCRIPTION
RTW46FLF000201
The exhaust pipe layout is described in the above illustration.
The catalytic coverter is installed between the turbocharger and the front pipe.
Page 1798 of 4264
6F – 4 EXHAUST SYSTEM
REMOVAL AND INSTALLATION
RTW46FLF000101
Removal Steps
1. Rear hanger rubber
2. Silencer front nut
3. Exhaust silencer
4. Silencer hanger rubber
5. Middle pipe nut
6. Front hanger rubber
7. Front pipe nut
8. Exhaust pipe gasket
Page 1799 of 4264
EXHAUST SYSTEM 6F – 5
Important Operations – Installation
Follow the removal procedure in the reverse order to
perform the installation procedure. Pay careful attention to
the important points during the installation procedure.
1. Front Pipe Nut
Connect the exhaust pipe to the catalytic converter.
Torque Nm (kgm/lbft)
67 (6.8/49)
2. Middle pipe Nut (4
4 only)
Connect the middle pipe to the front pipe.
Torque Nm (kgm/lbft)
43 (4.4/32)
3. Silencer Front Nut
Connect the silencer to the front or middle pipe.
Torque Nm (kgm/lbft)
43 (4.4/32)
Page 1800 of 4264
6F – 6 EXHAUST SYSTEM
INSPECTION AND REPAIR
Make the necessary adjustments, repairs, and part replacements if excessive wear or damage is discovered during
inspection.
Front Exhaust Pipe
Exhaust Silencer
Check the pipes for corrosion, cracking, damage or
misalignment and repair as required.
Check the rubber rings for deterioration or damage and repair
as required.
Catalytic Converter
1. Inspect outside the catalytic converter for any hitting mark.
2. Visual check inside the catalytic converter for crack or break
converter element.
3. If find any problem during the inspection, replace the
catalytic converter assembly.