Nissan Maxima Service and Repair Manual: Fuel Injector And Fuel Tube
Exploded View
- Fuel feed hose
- Quick connector cap
- Fuel tube
- O-ring
- Fuel damper
- Fuel damper cap
- Clip
- O-ring (black)
- Fuel injector
- O-ring (green)
- Refer to INSTALLATION
Removal and Installation
REMOVAL
WARNING:
- Put a "CAUTION: FLAMMABLE" sign in the workshop.
- Be sure to work in a well ventilated area and furnish workshop
with a CO2 fire extinguisher.
- Do not smoke while servicing fuel system. Keep open flames and
sparks away from the work area.
- To avoid the danger of being scalded, do not drain engine
coolant when engine is hot.
CAUTION:
- Apply new engine oil when installing the parts as specified to
do so.
- Do not remove or disassemble parts unless instructed.
- Release the fuel pressure. Refer to EC-592, "Inspection".
- Disconnect the battery negative terminal. Refer to PG-67, "Removal
and Installation (Battery)".
- Remove intake manifold collector. Refer to EM-25, "Removal and
Installation".
- When separating fuel feed hose and fuel tube connection,
disconnect quick connector using Tool as follows:
Tool number : 16441 6N210 (J-45488)
- Remove quick connector cap from quick connector.
- Disconnect quick connector from fuel tube as follows:
CAUTION: Disconnect quick connector by
using Tool. Not by prying out retainer tabs.
- With the sleeve side of Tool facing to quick connector, install
the Tool onto fuel tube.
- Insert Tool (A) into quick connector (2) until sleeve (B) contacts
and goes no further. Hold tool on that position.
(C) : Insert and retain
CAUTION: Inserting Tool with excess force
will not disconnect quick connector. Hold quick connector release where it
contacts and goes no further.
iii. Draw and pull out quick connector straight from fuel tube (1).
CAUTION:
- Pull quick connector (E) holding position (D) as shown.
- Do not pull with lateral force applied. O-ring inside quick
connector may be damaged.
- Prepare container and cloth beforehand as fuel will leak out.
- Avoid fire and sparks.
- Keep parts away from heat source. Especially, be careful when
welding is performed around them.
- Do not expose parts to battery electrolyte or other acids.
- Do not bend or twist connection between quick connector and
fuel feed hose (with damper) during installation/removal.
- To keep clean the connecting portion and to avoid damage
and foreign materials, cover them completely with plastic bags, etc. (A)
or something similar.
- Disconnect harness connector from fuel injector.
- Loosen bolts in reverse order as shown, and remove fuel tube and fuel
injector assembly.
: Engine front
CAUTION: Do not tilt fuel tube, or remaining fuel in
pipes may flow out from pipes.
- Remove fuel injector from fuel tube as follows:
- Open and remove clip (1).
(3) : O-ring (green)
(4) : O-ring (black)
(A) : Installed
condition
(B) : Clip groove
Remove fuel injector (2) from fuel tube (5) by pulling straight.
CAUTION:
- Be careful, fuel may leak from the fuel tube.
- Be careful not to damage injector nozzle during removal.
- Do not bump or drop fuel injector.
- Do not disassemble fuel injector.
- Do not reuse O-rings.
- Remove fuel damper from fuel tube.
INSTALLATION
- Install fuel damper as follows:
- Install new O-ring (2) to fuel tube (1) as shown. When handling
new O-ring, be careful of the following caution:
CAUTION:
- Handle O-ring with bare hands. Do not wear gloves.
- Lubricate O-ring with new engine oil.
- -Do not clean O-ring with solvent.
- Check that O-ring and its mating part are free of foreign
material.
- When installing O-ring, be careful not to scratch, nick or
damage it.
- Be careful not to twist or stretch O-ring.
- Insert new O-ring straight into fuel tube. Be sure O-ring is
centered and not twisted.
- Install spacer (3) to fuel damper (4).
- Insert fuel damper straight into fuel tube.
CAUTION:
- Insert straight, checking that the axis is lined up.
- Do not pressure-fit with excessive force.
- Insert fuel damper until (B) is touching (A) of fuel tube.
Reference value : 130 N (13.3 kg, 29.2 lb)
- Tighten bolts evenly in turn.
- After tightening bolts, check that there is no gap between fuel
damper cap (5) and fuel tube.
- Install new O-rings to fuel injector paying attention to the following.
CAUTION:
- Upper and lower O-ring are different. Be careful to install
them in the correct location.
Fuel tube side : Black
Nozzle side : Green
- Handle O-ring with bare hands. Do not wear gloves.
- Do not reuse O-rings.
- Lubricate O-ring with new engine oil.
- Do not clean O-ring with solvent.
- Check that O-ring and its mating part are free of foreign
material.
- When installing O-ring, be careful not to scratch, nick or
damage it.
- Also be careful not to twist or stretch O-ring.
- If O-ring was stretched while it was being attached, wait for
it to return to the original shape before inserting it into the fuel
tube.
- Insert O-ring straight into fuel injector. Do not decenter or twist
i
- Install fuel injector to fuel tube as follows:
- Insert clip (3) into clip groove (F)
on fuel injector (5).
(2) : O-ring (black)
(4) : O-ring (green)
- Insert clip so that protrusion (E) of fuel injector matches cutout
(C) of clip.
CAUTION:
- Do not reuse clip. Replace it with new one.
- Be careful to keep clip from interfering with O-ring. If
interference occurs, replace O-ring.
- Do not reuse O-rings.
- Insert fuel injector into fuel tube (1) with clip attached.
- Insert it while matching it to the axial center.
- Insert fuel injector so that protrusion (A) of fuel tube matches
cutout (B) of clip.
- Check that fuel tube flange (G) is securely fixed in flange fixing
groove (D) on clip.
- Check that installation is complete by checking that fuel injector
does not rotate or come off.
- Check that protrusions of fuel injectors and fuel tubes are
aligned with cutouts of clips after installation.
- Install fuel tube and fuel injector assembly to intake manifold.
CAUTION: Be careful not to let tip of
injector nozzle come in contact with other parts.
- Tighten bolts in two steps in numerical order as shown
: Engine front
1st step : 10.1 N*m (1.0
kg-m, 7 ft-lb)
2nd step : 22.0 N*m (2.2 kg-m, 16 ft-lb)
- Connect fuel injector harness.
- Install intake manifold collector. Refer to EM-25, "Removal and
Installation".
- Connect quick connector between fuel feed hose and fuel tube
connection with the following procedure:
- Check no foreign substances are
deposited in and around fuel tube and quick connector, and no damage on
them.
- Thinly apply new engine oil around fuel tube
from tip end to spool end.
- Align center to insert quick connector
straightly into fuel tube.
- Insert quick connector (1) to fuel tube until top spool (2) is
completely inside quick connector, and 2nd level spool (3) exposes right
below quick connector.
(B) : Fitted condition
: Upright
insertion
CAUTION:
- Holding position (A) when inserting fuel tube into quick
connector.
- Carefully align center to avoid inclined insertion to prevent
damage to O-ring inside quick connector.
- Insert until you hear a "click" sound and actually feel the
engagement.
- To avoid misidentification of engagement with a similar sound,
be sure to perform the next step.
- Pull quick connector by hand holding position. Check it is
completely engaged (connected) so that it does not come out from fuel
tube.
- Install quick connector cap (3) to quick connector.
(1) : Fuel feed hose
(2) : Fuel tube
(B) : Upper view
- Install quick connector cap with arrow (A) on surface facing in
direction of quick connector (fuel feed hose side).
CAUTION: If quick connector cap cannot be
installed smoothly, quick connector may have not been installed correctly.
Check connection again.
- Secure fuel feed hose to clamp of quick connector cap.
- Installation is in the reverse order of
removal.
Inspection
INSPECTION AFTER INSTALLATION
Check For Fuel Leaks
- Turn ignition switch "ON" with the engine stopped. With fuel
pressure applied to fuel piping, check for fuel leaks at connection
points. Repair as necessary. NOTE:
Use mirrors for checking at points out of clear sight.
- Start the engine. With engine speed increased, check again for fuel
leaks at connection points. Repair as necessary.
CAUTION: Do not touch the engine immediately after
stopped, as the engine becomes extremely hot.
Exploded View
Ignition coil
Spark plug
Rocker cover (RH)
Rocker cover (LH)
Removal and Installation (LH)
REMOVAL
Remove engine room cover. Refer to EM-23, "Removal and Installati ...
Exploded View
Camshaft position sensors (LH)
O-rings
Camshaft position sensors (RH)
O-rings
Rocker cover (RH)
Rocker cover gasket (RH)
Rocker cover gasket (LH)
Rocker cover (L ...
Other materials:
Combination switch reading system
System Diagram
System Description
OUTLINE
BCM reads the status of the combination switch (light, turn
signal, wiper and washer) and recognizes the
status of each switch.
BCM has a combination of 5 output terminals (OUTPUT 1 - 5) and 5
input terminals (INPUT 1 - 5) and reads
a ...
P0078, P0084 EVT control magnet retarder
Description
Exhaust valve timing control magnet retarder (1) controls the shut/
open timing of the exhaust valve by ON/OFF pulse duty signals sent
from the ECM.
The longer pulse width retards valve timing.
The shorter pulse width advances valve timing.
DTC Logic
DTC DETECTION LOGIC
...
Heater & cooling unit assembly
Exploded View
Wiring harness
Mode door motor
Upper floor connecting duct (LH)
Air mix door motor (driver side)
Heater core pipes cover
Heater core
In-cabin microfilter
Filter cover
Blower motor
Intake door motor
Blower unit
Upper floor connecting duct (RH)
Air mi ...