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FI
CHAPTER 7
FUEL INJECTION SYSTEM
FUEL INJECTION SYSTEM
............................................................................7-1
WIRING DIAGRAM ...................................................................................7-2
ECU’S SELF-DIAGNOSTIC FUNCTION...................................................7-3
SUBSTITUTE CHARACTERISTICS OPERATION CONTROL
(FAIL-SAFE ACTION) ..............................................................................7-7
TROUBLESHOOTING ..............................................................................7-8
THROTTLE BODIES...............................................................................7-33
CHECKING THE INJECTOR ..................................................................7-37
CHECKING THE THROTTLE BODY ......................................................7-37
CHECKING THE PRESSURE REGULATOR .........................................7-37
CHECKING THE FUEL PUMP AND
PRESSURE REGULATOR OPERATION ..............................................7-38
AIR INDUCTION SYSTEM
............................................................................7-40
AIR INJECTION.......................................................................................7-40
AIR CUT-OFF VALVE .............................................................................7-40
AIR INDUCTION SYSTEM DIAGRAMS..................................................7-41
AIR CUT-OFF VALVE ASSEMBLY AND
AIR INDUCTION SYSTEM HOSES .......................................................7-42
REED VALVES........................................................................................7-43
CHECKING THE AIR INDUCTION SYSTEM..........................................7-44