ENGINE GENERAL INFORMATION AND DIAGNOSIS (SFI FOR G13) 6-1-101
1. Fuel injector
2. Delivery pipe
3. Fuel regulator
4. Fuel filter
5. Fuel pump
Special Tool
(A) Gauge (09912-58441)
(B) Hose (09912-58431)
(C) 3-way joint (09912-58490)
TABLE B-3 FUEL PRESSURE CHECK
INSPECTION
STEP ACTION YES ON
1 1) Release fuel pressure from fuel feed line.
2) Install fuel pressure gauge.
3) Check fuel pressure by repeating ignition switch
ON and OFF.
Is fuel pressure then 270 – 310 kPa
(2.7 – 3.1 kg/cm
2
, 38.4 – 44.0 psi)?
Go to Step 2. Go to Step 5.
2 Is 200 kPa (2.0 kg/cm
2
, 28.4 psi) or higher fuel
pressure retained for 1 minute after fuel pump is
stopped at step 1?
Go to Step 3. Go to Step 4.
3 1) Start engine and warm it up to normal operating
temperature.
2) Keep it running at specified idle speed.
Is fuel pressure then within 200 – 240 kPa
(2.0 – 2.4 kg/cm
2
, 28.4 – 34.1 psi)?
Normal fuel pressure. Clogged vacuum
passage for fuel
pressure regulator or
faulty fuel pressure
regulator.
4 Is there fuel leakage from fuel feed line hose, pipe or
their joint?
Fuel leakage from
hose, pipe or joint.
Go to Step 10.
5 Was fuel pressure higher than spec. in step 1? Go to Step 6. Go to Step 7.
6 1) Disconnect fuel return hose from fuel pressure
regulator and connect new return hose to it.
2) Put the other end of new return hose into approved
gasoline container.
3) Operate fuel pump.
Is specified fuel pressure obtained then?
Restricted fuel return
hose or pipe.
Faulty fuel pressure
regulator.
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