User Manual - Page 57

For 2002 NISSAN MAXIMA.

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SEC998C
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: Approximately 350 kPa (3.57 kg/cm
2
, 51 psi)
6. If results are unsatisfactory, go to next step.
7. Check the following.
I Fuel hoses and fuel tubes for clogging
I Fuel filter for clogging
I Fuel pump
I Fuel pressure regulator for clogging
If OK, replace fuel pressure regulator.
If NG, repair or replace.
SEC030D
SEF703X
Injector
REMOVAL AND INSTALLATION
NFEC0026
1. Release fuel pressure to zero.
2. Remove intake manifold collector. Refer to EM-21, “TIMING
CHAIN”.
3. Remove fuel tube assemblies in numerical sequence as
shown in the figure at left.
4. Expand and remove clips securing fuel injectors.
5. Extract fuel injectors straight from fuel tubes.
I Be careful not to damage injector nozzles during removal.
I Do not bump or drop fuel injectors.
6. Carefully install O-rings.
I Lubricate O-rings with a smear of engine oil.
I Be careful not to damage O-rings with service tools, fin-
ger nails or clips. Do not expand or twist O-rings.
I Discard old clips; replace with new ones.
7. Position clips in grooves on fuel injectors.
I Make sure that protrusions of fuel injectors are aligned
with cutouts of clips after installation.
GI
MA
EM
LC
FE
CL
MT
AT
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
BASIC SERVICE PROCEDURE
Fuel Pressure Check (Cont’d)
EC-57
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