MECHANICAL
FUEL PRESSURE
7.
Fuel Pressure
A:
INSPECTION
WARNING:
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(D0HC
0
P
E RATION, Fuel.
>
2)
Open the fuel flap lid, and remove the fuel filler
cap.
TURBO)-51, RELEASING
OF
FUEL PRESSURE,
3)
Disconnect the fuel delivery hoses from fuel fil-
ter, and connect the fuel pressure gauge.
4) Connect the connector of fuel pump relay.
44
I
5)
Start the engine.
6)
Measure fuel pressure while disconnecting the
pressure regulator vacuum hose from intake man-
ifold.
Fuel pressure:
Standard; 284
-
314 kPa (2.9
-
3.2 kgf/cd,
41
-
46 psi)
7)
Iter connecting the pressure regulator vacuum
hose, measure fuel pressure.
Fuel pressure:
Standard; 230
-
260 kPa (2.35
-
2.65 kgf/
cm’, 33
-
38 psi)
I
NOTE:
The fuel pressure gauge registers
10
to
20
kPa
(0.1
to
0.2
kgf/cm2,
1
to
3
psi) higher than standard Val-
ues during high-altitude operations.
ME(D0HC TU
RB0)-27
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