fuel cap release NISSAN ALMERA N16 2001 Electronic Repair Manual

If results are unsatisfactory, perform Fuel Pressure Regulator
Check, EC-39.
SEF718B
Fuel Pressure Regulator CheckNJEC00261. Stop engine and disconnect fuel pressure regulator vacuum
hose from intake manifold.
2. Plug intake manifold with a rubber cap.
3. Connect variable vacuum source to fuel pressure regulator.
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.
JEF088Y
SEF927W
Injector
REMOVAL AND INSTALLATIONNJEC00271. Release fuel pressure to zero.
2. Remove fuel tube assemblies in numerical sequence as
shown in the Figure at left.
3. Expand and remove clips securing fuel injectors.
4. Extract fuel injectors straight from fuel tubes.
+Be careful not to damage injector nozzles during removal.
+Do not bump or drop fuel injectors.
5. Install fuel injectors.
Carefully install O-rings, including the one used with the pres-
sure regulator.
+Lubricate O-rings with a smear of engine oil.
+Be careful not to damage O-rings with service tools or
finger nails or clips. Do not expand or twist O-rings.
+Discard old clips; replace with new ones.
6. Position clips in grooves on fuel injectors.
+Make sure that protrusions of fuel injectors are aligned
with cutouts of clips after installation.
BASIC SERVICE PROCEDUREQG
Fuel Pressure Regulator Check
EC-39

Fuel TankNJFE0006
YFE013
JFE613A
REMOVALNJFE0006S011. Release fuel pressure from fuel line.
Refer to EC-38, ªFuel Pressure Releaseº.
2. Disconnect battery ground cable.
3. Open fuel filler lid and filler cap.
4. Drain fuel from fuel tank.
5. Remove rear seat cushion. Refer to BT-59, ªRemoval and
Installationº.
6. Remove inspection hole cover under the rear seat.
FUEL SYSTEMQG
Fuel Tank
FE-6

Fuel Pump, Fuel Level Sensor Unit and Fuel
Filter
NJFE0007
NFE065
JFE613A
REMOVALNJFE0007S011. Release fuel pressure from fuel line.
Refer to EC-38, ªFuel Pressure Releaseº.
2. Disconnect battery ground cable.
3. Open fuel filler lid and filler cap.
4. Remove rear seat cushion. Refer to BT-59, ªRemoval and
Installationº.
5. Remove inspection hole cover under the rear seat.
SFE639A
6. Disconnect electrical connector.
7. Disconnect the quick connectors.
+For disconnect of quick connectors, refer to step 8. of ªFuel
Tank Removalº.
FUEL SYSTEMQG
Fuel Pump, Fuel Level Sensor Unit and Fuel Filter
FE-9