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SEF031Y
3. Install pressure gauge to the fuel pressure check adapter as
shown in the figure.
4. Start engine and check for fuel leakage.
5. Read the indication of fuel pressure gauge.
At idling:
With vacuum hose connected
Approximately 235 kPa (2.4 kg/cm
2
, 34 psi)
With vacuum hose disconnected
Approximately 294 kPa (3.0 kg/cm
2
, 43 psi)
If results are unsatisfactory, perform Fuel Pressure Regulator
Check.
SEC015C
Fuel Pressure Regulator Check
NHEC0025
1. Stop engine and disconnect fuel pressure regulator vacuum
hose from vacuum gallery.
2. Plug vacuum gallery with a blind cap.
3. Connect variable vacuum source to fuel pressure regulator.
SEF718BA
4. Start engine and read indication of fuel pressure gauge as
vacuum is changed.
Fuel pressure should decrease as vacuum increases. If results
are unsatisfactory, replace fuel pressure regulator.
BASIC SERVICE PROCEDURE
Fuel Pressure Check (Cont’d)
EC-50
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