
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)