OK CONTINUED FROM PAGE FI-14 CHECK COLD START INJECTOR (See page FI-77) BAD 1. Cold start injector 2. Cold start injector time switch (See page FI-112) OK CHECK FUEL PRESSURE (See page FI-71) BAD 1. Fuel pump (See page FI-70) 2. Fuel filter 3. Fuel pressure regulator (See page FI-81) OK CHECK INJECTORS (See page FI-83) BAD Injection condition OK CHECK EFI ELECTRONIC CIRCUIT USING VOLT/OHMMETER (See pages FI-30, 49) BAD 1. Wiring connection 2. Power to ECU (1) Fusible links (2) Fuses (3) EFI main relay 3. Air flow meter 4. Water temp. sensor 5. Air temp. sensor 6. Injection signal circuit (1) Injector wiring (2) Resistor (7M-GTE) (3) ECU SYMPTOM — ENGINE SOMETIMES STALLS CHECK DIAGNOSIS SYSTEM Check for output of diagnostic code. (See page FI-23) Malfunction code(s) Diagnostic code(s) (See page FI-26) Normal code CHECK AIR FLOW METER (See pages FI-94, 96) BAD Air flow meter OK CHECK WIRING CONNECTORS AND RELAYS Check for a signal change when the connector or relay is slightly tapped or wiggled. BAD 1. Connector 2. EFI main relay (See page FI-109) 3. Circuit opening relay (See page FI-110)