2014 NISSAN TEANA ECU

INTAKE MANIFOLDEM-31
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9. Disconnect the brake booster vacuum
hose from the intake manifold.
10. Disconnect the fuel quick connector from the fuel tube assembly. Refer to EM-41, "Removal and Installa-
tion".
11. Disconnect the water hoses from the electric throttle control actuator.
NOTE:
When removing only intake manifold, position electric throttle control actuator aside without disconnecting
the water hose.
12. Loosen bolts in reverse order as shown, then remove electric throttle control actuator and electr ic throttle control actuator O-
ring.
CAUTION:
Handle carefully to avoid any damage.
13. Disconnect the radiator hose (upper) from the water outlet. Refer to CO-16, "Exploded View"
.
14. Disconnect electrical harness connectors from the tumble control valve, tumble control valve position sen-
sor, and power valve motor.
15. Remove the fuel tube assembly. Refer to EM-41, "Removal and Installation"
.
16. Remove the bolts and nuts in the reverse order shown using power tools and remove the intake manifold assembly with gas-
ket.
CAUTION:
Cover engine openings to pr event entry of foreign materi-
als.
NOTE:
Disregard No. 6 when loosening.
INSTALLATION
Installation is in the reverse order of removal. Fo llow the tightening sequences and specifications below and
perform the following:
• Perform the “Throttle Valve Closed Position Learning” when harness connector of electric throttle control
actuator is disconnected. Refer to EC-178, "Work Procedure"
.
• Perform the “Idle Air Volume Learning” and “Throttle Valve Closed Position Learning” when electric throttle
control actuator is replaced. Refer to EC-179, "Work Procedure"
or EC-178, "Work Procedure".
Intake Manifold
1. Securely install gasket to the mounting groove.
CAUTION:
Do not reuse gasket.
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FUEL INJECTOR AND FUEL TUBEEM-43
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O• Handle O-rings with bare hands only. Do not wear gloves.
• Do not clean O-rings with solvent.
• Make sure that O-ring and its mating part are free of foreign material.
• Be careful not to scratch O- rings during installation.
• Do not twist or stretch the O-ring. If the O-ring was stretched while it is attached, do not insert it
into the fuel tube immediately.
2. Install the fuel injector (5) into the fuel tube (1) with the following procedure:
(2): O-ring (black)
(4): O-ring (green)
a. Insert the new clip (3) into the clip mounting groove (F) on fuel injector (5).
• Insert the clip (3) so that prot rusion (E) of fuel injector (5)
matches cutout (C) of the clip (3).
CAUTION:
• Do not reuse clip (3), replace it with a new one.
• Be careful to keep clip from interfering with O-ring. If
interference occurs, replace O-ring.
b. Insert fuel injector (5) into fuel tube (1) with clip (3) attached. • Insert fuel injector (5) so that protrusion (A) of fuel tube (1)
matches cut-out (B) of the clip (3).
• Check that fuel tube flange (G) is securely fixed in flange
groove (D) on the clip (3).
c. Check that installation is comple te by checking that fuel injector
(5) does not rotate or come off.
3. Install fuel tube and fuel injector assembly with the following procedure.
a. Insert the tip of each fuel injector into intake manifold.
b. Tighten the bolts to specification in the numerical order as shown.
CAUTION:
After properly connecting fu el tube assembly to injector
and fuel hose, check co nnection for fuel leaks.
4. Connect the fuel hose quick connector.
a. Make sure no foreign substances are deposited in and around the fuel tube and quick connector, and there is no damage to them.
b. Thinly apply new engine oil around the fuel tube tip end. Fuel tube side : Black
Nozzle side : Green
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EM-46
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ROCKER COVER
1. Apply liquid gasket to the position shown (A) with the following
procedure:
a. Apply liquid gasket to joint part of No.1 camshaft bracket (1) and cylinder head.
b. Apply liquid gasket in a 90 ° degree angle (B).
• Use Genuine Silicone RTV Seal ant, or equivalent. Refer to
GI-21
.
2. Install rocker cover gasket to rocker cover. NOTE:
The rocker cover gasket must be securely installed in the groove in the rocker cover.
3. Install the rocker cover and rocker cover gasket onto the cylinder head.
4. Tighten the rocker cover bolts to specification in two steps in the order shown.
5. Installation of the remaining components is in the reverse order of removal. (B) : 10 mm (0.39 in)
(C) : 4 mm (0.16 in)
(D) : 5 mm (0.20 in)
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Step 1 : 1.96 N·m (0.20 kg-m, 17 in-lb)
Step 2 : 8.33 N·m (0.85 kg-m, 74 in-lb)
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CAMSHAFTEM-49
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c. At the same time, make sure that the mating marks (outer
groove) (B) on camshaft sprockets are lined up with the pink
links (A) in the timing chain, as shown.
• If not, rotate crankshaft pulley one more turn to line up the
mating marks (outer groove) (B) to the pink links (A), as
shown.
10. Remove the timing chain tensioner (primary) with the following procedure.
a. Pull the lever down and release the plunger stopper tab. • Plunger stopper tab can be pushed up to release (coaxial
structure with lever).
b. Insert the stopper pin into the tensioner body hole to hold the lever and keep tab released.
NOTE:
Allen wrench [2.5 mm (0.098)] is used for a stopper pin as an
example.
c. Insert plunger into tensioner body by pressing slack guide.
d. Keep slack the guide pressed and hold it by pushing the stopper
pin through the lever hole and body hole.
e. Remove the bolts and remove the timing chain tensioner (pri- mary).
11. Remove camshaft sprockets with the following procedure. CAUTION:
• Do not rotate the crankshaft or camshaft while the timing chain is removed. It causes interference between valve
and piston.
NOTE:
• Chain tension holding work is not necessary. Timing chain does not fall off the crankshaft sprocket while the front cover is
attached.
a. Line up the mating marks on camshaft sprockets with the pink links in the timing chain, and paint an indelible mating mark on
the sprocket and timing chain link plate.
b. Secure the hexagonal part of camshaft with a suitable tool. Loosen the camshaft sprocket bolts and remove the camshaft sprockets.
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EM-64
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TIMING CHAIN
• Plunger stopper tab can be pushed up to release (coaxial
structure with lever).
b. Insert the stopper pin into the tensioner body hole to hold the lever and keep tab released.
NOTE:
Allen wrench [2.5 mm (0.098)] is used for a stopper pin as an
example.
c. Insert plunger into tensioner body by pressing slack guide.
d. Keep slack the guide pressed and hold it by pushing the stopper pin through the lever hole and body hole.
e. Remove the bolts and remove the timing chain tensioner (pri- mary).
f. Remove the timing chain. CAUTION:
Do not rotate the crankshaft or camshafts while the timing chain is removed. It can cause damage
to the valve and piston.
13. Remove the camshaft sprockets using the following procedure:
a. Secure hexagonal part of the camshaft with a wrench and loosen the camshaft sprocket bolt.
b. Remove the camshaft sprocket bolt and camshaft sprockets for both camshafts.
14. Remove the chain slack guide, tension guide, and oil pump drive spacer.
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TIMING CHAINEM-65
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15. Press stopper tab (A) in the direction shown to push the timing
chain slack guide (B) toward timing chain tensioner (1) for the
balancer unit.
• The slack guide (B) is released by pressing the stopper tab
(A). As a result, the slack guide (B) can be moved.
16. Insert stopper pin (D) into tensioner body hole (C) to secure tim- ing chain slack guide (B).
NOTE:
Use a hard metal pin with a diameter of approximately 1.2 mm
(0.047 in) as a stopper pin.
17. Remove timing chain tensioner (1) for balancer unit.
18. Secure width across flats of the balancer unit LH side shaft using a suitable tool. Loosen the balancer unit sprocket bolt.
19. Remove balancer unit timing chain, balancer unit sprocket and crankshaft sprocket.
20. Loosen bolts in the reverse order shown, and remove balancer unit.
CAUTION:
• Do not disassemble balancer unit.
INSPECTION AFTER REMOVAL
Timing Chain
Check the timing chain for cracks or excessive wear. If a defect is
found, replace the timing chain.
Balancer Unit Bo lt Outer Diameter
PBIC5314E
: Engine front
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TIMING CHAINEM-69
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d. Tighten front cover bolts in the numerical order shown.
e. After all bolts are tightened, retighten them to the specified torque.
CAUTION:
Wipe off excess sealant leaking at the surface for installing
the oil pan.
10. Install the chain guide between the camshaft sprockets.
11. Install valve timing control cover. Refer to EM-59, "Valve Timing Control Cover"
.
12. Insert crankshaft pulley by aligning with crankshaft key. • Tap its center with a plastic hammer to insert.
• Do not tap the crankshaft pulley outer diameter.
13. Tighten crankshaft pulley bolt. • Secure crankshaft pulley with tool to tighten the bolt.
• Perform angle tightening with the following procedure:
a. Apply new engine oil to threads and seat surfaces of bolts.
b. Tighten to initial specifications:
c. Apply a paint mark (A) on the front cover, mating with any one of six easy to recognize stamp marks on bolt flange (B).
d. Turn crankshaft pulley bolt an additional 60 degrees +6/-0 degrees.
NOTE:
Check that the assembled unit does not interfere with adjacent
components by turning the crankshaft in the tightening direction.
14. Installation of the remaining components is in the reverse order of removal.Front cover bolts
Bolts 6, 10, 12 : 49 N·m (5.0 kg-m, 36 ft-lb)
Bolts (all remaining) : 12.7 N·m (1.3 kg-m, 9 ft-lb)
(A) : Dowel pin
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Crankshaft bolt (1) : 42.1 N·m (4.3 kg-m, 31 ft-lb)
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DRIVE BELTSEM-135
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3. While securely holding the hexagonal part in pulley center of
drive belt auto-tensioner, move in the direction of arrow (loosen-
ing direction of drive belt auto-tensioner) using suitable tool.
WARNING:
Avoid placing hand in a locat ion where pinching may occur
if the holding tool accidentally comes off.
CAUTION:
Do not loosen the drive belt auto-tensioner pulley bolt. (do
not turn it counterclockwise. ) If turned counterclockwise,
the complete drive belt auto-t ensioner must be replaced as
a unit, including pulley.
4. Insert a rod approximately 6 mm (0.24 in) in diameter through the rear of drive belt auto-tensioner into retain ing boss to lock drive belt auto-tensioner pulley.
NOTE:
Leave drive belt auto-tensioner pulley arm locked until belt is installed again.
5. Loosen drive belt and then remove it from the other pulleys.
INSTALLATION
1. Install the drive belt onto all of the pulleys.
CAUTION:
Confirm belts are completely set on the pulleys.
2. Release drive belt auto-tensioner, and apply tension to belt. WARNING:
Avoid placing hand in a location wh ere pinching may occur if the holding tool accidentally comes
off.
CAUTION:
Do not loosen the auto-te nsioner pulley bolt. (Don't turn it counterclockwise. If turned counter-
clockwise, the complete auto-tensioner mu st be replaced as a unit, including pulley.
3. Turn crankshaft pulley clockwise several times to equalize tension between each pulley.
4. Confirm tension of belt at indicator is within the possible use range. Refer to EM-19, "Checking Drive
Belts".
5. Install the fender protector side cover RH. Refer to EXT-26, "FENDER PROTECTOR : Removal and
Installation".
6. Install the front RH wheel and tire. Refer to WT-55, "Adjustment"
.
Removal and Installation of Drive Belt Auto-tensionerINFOID:0000000009460532
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