Mitsubishi 6M70 - Fuel and Engine Control

13-1
GROUP 13
FUEL AND ENGINE CONTROL
SPECIFICATIONS................................. 13-2
STRUCTURE AND OPERATION
1. Common Rail System ....................... 13-4
2. Engine Control ................................ 13-20
3. Fuel Filter ......................................... 13-21
4. Water Separator............................... 13-22
TROUBLESHOOTING
<FUEL SYSTEM> ............................... 13-24
<DIAGNOSIS USING Multi-Use Tester>
1. Diagnosis Procedure ...................... 13-26
2. Diagnostic Precautions .................. 13-27
3. Inspections Based on
Diagnosis Codes .............................
13-28
4. Multi-Use Tester Service Data ........ 13-50
5. Actuator Tests Performed
Usin
g Multi-Use Tester....................
13-52
6. Inspections Performed at Electronic
Control Unit
Connectors ................
13-54
ON-VEHICLE INSPECTION AND
ADJUSTMENT
1. Inspecting No-load Minimum
and Maximum Speeds
.................... 13-58
2. Inspection of Fuel Leakage ............ 13-59
3. Inspection of Injection Pipe and
Fu
el Pipe Mounting Clamp
............. 13-59
4. Draining of Deposit in Fuel Tank.... 13-59
5. Air-bleeding of Fuel System........... 13-60
6. Fuel Filter Replacement................. 13-61
7. Cleaning of Gauze Filter ................ 13-62
8. Water Separator Element
Repl
acement....................................
13-63
COMMON RAIL................................... 13-65
SUPPLY PUMP.................................... 13-66
INJECTOR........................................... 13-70
FUEL TANK......................................... 13-74
FUEL FILTER ...................................... 13-76
WATER SEPARATOR ......................... 13-80
ENGINE CONTROL ............................ 13-84
INSPECTION OF ELECTRICAL
EQUIPMENT........................................ 13-88
INSTALLED LOCATIONS OF
PARTS ................................................. 13-94
ELECTRIC CIRCUIT DIAGRAM ....... 13-102