Page text (OCR transcript)
SYMPTOM — HIGH ENGINE IDLE SPEED (NO DROP)
CHECK ACCELERATOR LINKAGE
BAD
Linkage — Stuck
OK
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 ISC SYSTEM
BAD
1. Wiring connection
Air con. Throttle position sensor—ECU)
2. ISC valve
3. Air conditioner switch
OK
CHECK THROTTLE POSITION SENSOR
BAD
Throttle body
OK
CHECK FUEL PRESSURE
(See page FI-71)
BAD
Fuel pressure regulator — High pressure
OK
CHECK COLD START INJECTOR
(See page FI-77)
BAD
Cold start injector — Leakage
OK
CHECK INJECTORS (See page FI-83)
BAD
Injectors — Leakage, Injection quality
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 (EFI 15A, IGN 7.5A)
(3) EFI main relay
3. Air flow meter
4. Water temp. sensor
5. Air temp. sensor
6. Injection signal circuit
(1) Fusible links
(2) Resistor (7M-GTE)
(3) ECU
