CHAPTER 6 FUEL INJECTION SYSTEM FUEL INJECTION SYSTEM ............................................................................6-1 CIRCUIT DIAGRAM ..................................................................................6-3 ECU SELF-DIAGNOSTIC FUNCTION......................................................6-5 SELF-DIAGNOSTIC FUNCTION TABLE..................................................6-6 TROUBLESHOOTING CHART.................................................................6-7 DIAGNOSTIC MODE ................................................................................6-8 TROUBLESHOOTING DETAILS ............................................................6-12 CHECKING THE INTAKE AIR PRESSURE SENSOR ...........................6-26 CHECKING THE INTAKE AIR TEMPERATURE SENSOR ....................6-26 FUEL TANK ...................................................................................................6-28 REMOVING THE FUEL TANK................................................................6-30 REMOVING THE FUEL PUMP ...............................................................6-30 CHECKING THE FUEL PUMP BODY.....................................................6-31 CHECKING THE ROLLOVER VALVE ....................................................6-31 INSTALLING THE FUEL PUMP..............................................................6-31 INSTALLING THE FUEL HOSE..............................................................6-32 THROTTLE BODY .........................................................................................6-33 REMOVING THE THROTTLE BODY ASSEMBLY .................................6-36 CHECKING THE FUEL INJECTOR ........................................................6-36 CHECKING THE THROTTLE BODY ......................................................6-36 INSTALLING THE THROTTLE BODY ASSEMBLY................................6-37 CHECKING THE FUEL PUMP AND PRESSURE REGULATOR OPERATION ..........................................................................................6-38 CHECKING AND ADJUSTING THE THROTTLE POSITION SENSOR ................................................................................................6-39 FI