OK CONTINUED FROM PAGE FI-13 CHECK FUEL PRESSURE (See page FI-45) BAD 1. Fuel pump (See page FI-44) 2. Fuel filter 3. Fuel pressure regulator (See page FI-62) OK CHECK INJECTORS (See page FI-53) BAD Injection condition OK CHECK EFI ELECTRONIC CIRCUIT USING VOLT/OHMMETER BAD 1. Wiring connection 2. Power to ECU (1) Fusible link (2) No. 1 and No. 2 main relay 3. Air flow meter 4. Water temp. sensor 5. Injection signal circuit (1) Injector wiring (2) Resistor (3) ECU SYMPTOM — ENGINE SOMETIMES STALLS CHECK DIAGNOSIS SYSTEM Check for output of diagnostic code. (See page FI-22) Malfunction code(s) Diagnostic code(s) (See page FI-25) Normal code CHECK AIR FLOW METER (See page FI-58) BAD Air flow meter OK CHECK WIRING CONNECTORS AND RELAYS Check that there is a signal change when the connector or relay is slightly tapped or wiggled. BAD 1. Connector 2. No.1 and No. 2 main relay (See page FI-68) 3. Circuit opening relay (See page FI-69)