Mitsubishi 6M70 - Emission Control

17-1
GROUP 17 MITSUISHI 6M70
EMISSION CONTROL
STRUCTURE AND OPERATION
1. Exhaust Gas Recirculation System............................................... 17-2
2. Blowby Gas Return System .......................................................... 17-7
ON-VEHICLE INSPECTION AND ADJUSTMENT
1. Replacement of Positive Crankcase Ventilation Valve Element..... 17-8
2. Check for Cracks and Damages in Piping of Blowby Gas
Retu
rn System
.............................................................................. 17-8
3. Check for Cracks, Damages and Looseness in Piping of
Exhaust Gas Recirculation System
............................................... 17-8
EXHAUST GAS RECIRCULATION SYSTEM
1. Diagnosis Procedure .................................................................. 17-10
2. Diagnostic Precautions .............................................................. 17-10
3. Inspections Based on Diagnosis Codes ......................................17-11
4. Multi-Use Tester Service Data ..................................................... 17-14
5. Actuator Tests Performed Using Multi-Use Tester....................... 17-14
6. Inspections Performed at Electronic Control Unit Connectors.... 17-14
7. Inspection of Electrical Equipment ............................................. 17-16
8. Installed Locations of Parts ........................................................ 17-18
9. Electric Circuit Diagram.............................................................. 17-24
EGR VALVE, EGR MAGNETIC VALVE, EGR PIPE AND
EGR COOLER................................................................................... 17-26
BLOWBY GAS RETURN SYSTEM .................................................. 17-29