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ME(H4DOTC)-39
MECHANICAL
Fuel Pressure
7. Fuel Pressure
A: INSPECTION
CAUTION:
Before removing the fuel pressure gauge, re-
lease the fuel pressure.
NOTE:
If out of specification, check or replace the pressure
regulator and pressure regulator vacuum hose.
1) Release the fuel pressure. <Ref. to
FU(H4DOTC)-53, RELEASING OF FUEL PRES-
SURE, OPERATION, Fuel.>
2) Open the fuel flap lid, and then remove the fuel
filler cap.
3) Disconnect the fuel delivery hoses from fuel fil-
ter, and then connect the fuel pressure gauge.
4) Connect the connector of fuel pump relay.
5) Start the engine.
6) Measure the fuel pressure while disconnecting
the pressure regulator vacuum hose from intake
manifold.
Fuel pressure:
Standard; 284 — 314 kPa (2.9 — 3.2 kgf/cm
2
,
41 — 46 psi)
7) After connecting the pressure regulator vacuum
hose, measure the fuel pressure.
Fuel pressure:
Standard; 230 — 260 kPa (2.35 — 2.65
kgf/cm
2
, 33 — 38 psi)
NOTE:
The fuel pressure gauge registers 10 to 20 kPa (0.1
to 0.2 kgf/cm
2
, 1 to 3 psi) higher than standard val-
ues during high-altitude operations.
ME-00010
FU-00871
ME-00011
ME-00011