EFI SYSTEM Page SYSTEM DESCRIPTION ................................................ FI-2 PRECAUTIONS....................................................... FI-4 INSPECTION PRECAUTIONS................................. FI-4 TROUBLESHOOTING ............................................ FI-8 DIAGNOSIS SYSTEM............................................ FI-22 TROUBLESHOOTING WITH VOLT/ OHMMETER....... FI-28 TROUBLESHOOTING FOR EFI ELECTRONIC CIRCUIT WITH VOLT/OHMMETER ..................... FI-29 FUEL SYSTEM ...................................................... FI-44 Fuel Pump....................................................... FI-44 Cold Start Injector ............................................ FI-49 Pressure Regulator ........................................... FI-52 Injector.......................................................... FI-53 Fuel Tank and Line............................................ FI-57 AIR INDUCTION SYSTEM ..................................... FI-58 Air Flow Meter ................................................. FI-58 Idle Speed Control (ISC) Valve .......................... FI-60 Throttle Body .................................................. FI-63 ELECTRONIC CONTROL SYSTEM ........................... FI-67 Location of Electronic Control Parts ................... FI-67 Main Relay...................................................... FI-68 Circuit Opening Relay........................................ FI-69 Solenoid Resistor.............................................. FI-70 Start Injector Time Switch ................................. FI-71 Water Temp. Sensor .......................................... FI-72 Oxygen Sensor................................................. FI-73 Electronic Controlled Unit (ECU) ........................ FI-75 Fuel Cut RPM................................................... FI-79