QK CONTINUED FROM PAGE FI-20 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-52) OK ↓ CHECK INJECTORS (See page FI-53) BAD → Injection condition OK ↓ CHECK SPARK PLUGS Max. allowable gap: 1.4 mm (0.055 in.) Precaution: Never attempt to adjust gap on used platinum tipped spark plug. — Note — Check compression pressure if necessary. See page EM-6) NO → 1. Spark plug 2. Compression pressure Limit: 9.0 kg/cm² (128 psi, 883 kPa) at 250 rpm 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. Air temp. sensor 6. Throttle position sensor 7. Injection signal circuit (1) Injector wirings (2) Resistor (3) ECU