FI/EFI System, page 21

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