EFI SYSTEM Page SYSTEM DESCRIPTION .................................. FI-2 PRECAUTIONS .................................................. FI-5 INSPECTION PRECAUTIONS ................................ FI-5 TROUBLESHOOTING ........................................ FI-10 DIAGNOSIS SYSTEM ........................................ FI-23 TROUBLESHOOTING WITH VOLT/OHMMETER (7M-GE) ............................ FI-30 TROUBLESHOOTING WITH VOLT/OHMMETER (7M-GTE) .......................... FI-49 FUEL SYSTEM .................................................. FI-70 Fuel Pump .................................................... FI-70 Cold Start Injector ........................................ FI-77 Fuel Pressure Regulator ................................. FI-81 Injectors ...................................................... FI-83 Fuel Tank and Line ........................................ FI-92 AIR INDUCTION SYSTEM ................................. FI-94 Air Flow Meter (7M-GE) .................................. FI-94 Air Flow Meter (7M-GTE) ............................... FI-96 Throttle Body ................................................ FI-100 Idle Speed Control (ISC) Valve ........................ FI-106 ELECTRONIC CONTROL SYSTEM ...................... FI-107 Location of Electronic Control Parts .................. FI-108 EFI Main Relay .............................................. FI-109 Circuit Opening Relay ..................................... FI-110 Solenoid Resistor (7M-GTE) ............................ FI-111 Cold Start Injector Time Switch ...................... FI-112 Water Temp. Sensor ...................................... FI-113 Fuel Pump Relay and Resistor ........................ FI-114 Fuel Pressure Control System (7M-GTE) ........... FI-116 EGR Gas Temp. Sensor (California Vehicles only) ............................. FI-118 Oxygen Sensor .............................................. FI-119 Sub-Oxygen Sensor [7M-GE (California Vehicles only)] ................. FI-121 Engine Electronic Controlled Unit (ECU) ............. FI-122 Fuel Cut RPM ................................................ FI-125