2006 ACURA CSX fuel




(#'
) Location Retainer
colorLine
diameter
Manufacturer
11-328 Fuel Supply System
Fuel Line/Quick-Connect Fitting Precautions
A
B
F H
I
G A
C
J
K
D
M L
E O
N
The fuel line/quick-connect fittings (A), (B), (C), (D), and
(E) connect the fuel rail (F) to fuel feed hose A (G), fuel
feed hose A to fuel feed hose B (H), fuel feed hose B to
the fuel line (I), the fuel line (J) to the fuel tank unit (K),
the fuel vapor line (L) to the EVAP canister (M) and the
fuel tank vapor recirculation tube (N) to the fuel fill pipe
(O). When removing or installing the fuel feed hose, the
fuel tank unit, or the fuel tank, you need to disconnect
or connect the quick-connect fittings.
Pay attention to the following:  The fuel feed hoses, the fuel line, and the quick- connect fittings are not heat-resistant; be careful not
to damage them during welding or other heat-
generating procedures.
 The fuel feed hoses, the fuel line, and the quick- connect fittings are not acid-proof; do not touch them
with a shop towel that was used for wiping battery
electrolyte. Replace them if they come in contact with
electrolyte or something similar.
 When connecting or disconnecting the fuel feed hoses, the fuel line, and the quick-connect fittings, be
careful not to bend or twist them excessively. Replace
them if they are damaged.
A disconnected quick-connect fitting can be
reconnected, but the retainer on the mating line cannot
be reused once it has been removed from the line.
Replace the retainer when: replacing the fuel rail.
 replacing the fuel line.
 replacing the fuel pump.
 replacing the fuel filter.
 replacing the fuel gauge sending unit.
 replacing the EVAP purge line.
 replacing the EVAP canister.
 replacing the fuel tank.
 replacing the fuel fill pipe.
 it has been removed from the line.
 it is damaged.
A Tokai Green 6.3 mm (0.2 in.)
B Tokai Blue green8mm
(0.3 in.)
C Sanoh White 9.5 mm (0.4 in.)
D Sanoh White 12 mm (0.5 in.)
E Tokai Natural 12 mm (0.5 in.)
* : This illustration shows K20Z2 engine.
08/08/21 14:29:51 61SNR030_110_0328
ProCarManuals.com
DYNOMITE -2009-





(#'
 )
11-329
Fuel Line/Quick-Connect Fitting Removal
A
AA
A AA
A B
D
C
NOTE: Before you work on the fuel lines and fittings,
read the Fuel Line/Quick-Connect Fitting Precautions
(see page 11-328).
1. Relieve the fuel pressure (see page 11-322).
2. Check the fuel quick-connect fittings (A) for dirt, and clean them if needed.
3. Place a rag or shop towel over the quick-connectfitting. Hold the connector (A) with one hand, and
squeeze the retainer tabs (B) with the other hand to
release them from the locking tabs (C). Pull the
connector off.
NOTE: Be careful not to damage the line (D) or other parts.
 Do not use tools.
 If the connector does not move, keep the retainer tabs pressed down, and alternately pull and push
the connector until it comes off easily.
 Do not remove the retainer from the line; once removed, the retainer must be replaced with a
new one.
(cont’d)
* : This illustration shows K20Z2 engine.
08/08/21 14:29:53 61SNR030_110_0329
ProCarManuals.com
DYNOMITE -2009-


11-330Fuel Supply System
Fuel Line/Quick-Connect Fitting Removal (cont’d)
A
B
A
4. Check the contact area (A) of the line (B) for dirt ordamage.
 If it is dirty, clean it, then dry it with the compressed air.
 If it is rusty or damaged, replace the fuel filter or fuel feed line. 5. To prevent damage and keep foreign matter out,
cover the disconnected connector and line ends
with plastic bags (A).
NOTE: The retainer cannot be reused once it has
been removed from the line.
Replace the retainer when: replacing the fuel rail.
 replacing the fuel feed line.
 replacing the fuel pump.
 replacing the fuel filter.
 replacing the fuel gauge sending unit.
 replacing the EVAP purge pipe.
 replacing the EVAP canister.
 replacing the fuel tank.
 replacing the fuel fill pipe.
 it has been removed from the line.
 it is damaged.
08/08/21 14:29:53 61SNR030_110_0330
ProCarManuals.com
DYNOMITE -2009-


Î
Î
Î
(#'
 )
11-331
Fuel Line/Quick-Connect Fitting Installation
A B
B A A
A
B
A
B
A
B
NOTE: Before you work on the fuel lines and fittings,
read the Fuel Line/Quick-Connect Fitting Precautions
(see page 11-328). 1. Check the contact area (A) of the line (B) for dirt or damage, and clean it if needed.
2. Insert a new retainer (A) into the connector (B) if the retainer is damaged, or after:
 replacing the fuel rail.
 replacing the fuel feed line.
 replacing the fuel pump.
 replacing the fuel filter.
 replacing the fuel gauge sending unit.
 replacing the EVAP purge pipe.
 replacing the EVAP canister.
 replacing the fuel tank.
 replacing the fuel fill pipe.
 removing the retainer from the line.
 Use the same manufacturer’s retainer and the same size when replacing the retainer (see page
11-328). 3. Before connecting a new fuel tube/quick-connect
fitting assembly (A), remove the old retainer (B)
from the mating line.
(cont’d)
* : This illustration shows K20Z2 engine.
08/08/21 14:30:55 61SNR030_110_0331
ProCarManuals.com
DYNOMITE -2009-


Î Î
Î
Connection with new retainer Reconnection to existing retainer
Connection to new fuel line
11-332Fuel Supply System
Fuel Line/Quick-Connect Fitting Installation (cont’d)
A
B A
C A
B
C
Sanoh-made
Tokai-made A
B
C C
4. Align the quick-connect fittings with the line (A),
and align the retainer locking tabs (B) with the
connector grooves (C). Then press the quick-
connect fittings onto the line until both retainer tabs
lock with a clicking sound.
NOTE: If it is hard to connect, put a small amount of
new engine oil on the line end.
08/08/21 14:30:56 61SNR030_110_0332
ProCarManuals.com
DYNOMITE -2009-


Connection to new fuel line
11-333
A
B
Sanoh-made Tokai-made
A
B C
5. When you reconnect the connector with the old
retainer, make sure the connection is secure and
the tabs (A) are firmly locked into place; check
visually and also by pulling the connector (B).
When you replace the fuel line with a new one,
make sure you remove the ring pull (C) upwards
after you confirm the connection is secure.
NOTE: Before you remove the ring pull, make sure
the fuel line connection is secure. If the connection
is not secure, the ring pull could break when you try
to remove it. 6. Reconnect the negative cable to the battery, and
turn the ignition switch to ON (II) (but do not
operate the starter motor). The fuel pump will run
for about 2 seconds, and fuel pressure will rise.
Repeat this two or three times, then check that
there is no leakage in the fuel supply system.
08/08/21 14:30:57 61SNR030_110_0333
ProCarManuals.com
DYNOMITE -2009-




(#'
 )
Special Tools Required
Removal
11-334
Fuel Supply System
Fuel Tank Unit Removal and Installation
A
A
B
C A
07AAA-SNAA100
A
B
Fuel pump module locknut wrench 07AAA-SNAA100 1. Relieve the fuel pressure (see page 11-322).
2. Remove the rear seat cushion (see page 20-131).
3. Remove the rear floor upper cross-member (A).
4. Remove the access panel (A) from the floor.
5. Disconnect the fuel tank unit 4P connector (B).
6. Disconnect the quick-connect fittings (C) from the fuel tank unit. 7. Using the special tool, loosen the locknut (A).
8. Remove the locknut (A) and the fuel tank unit (B).
08/08/21 14:30:58 61SNR030_110_0334
ProCarManuals.com
DYNOMITE -2009-



Installation
11-335
A
B A
B
1. Temporarily attach a new base gasket (A) to the
fuel tank unit (B), then insert the fuel tank unit
partially into the fuel tank.
NOTE: Be careful not to damage the new base gasket.
 Be careful not to bend the fuel gauge sending unit.
 Do not coat the base gasket with oil. 2. Transfer the base gasket (A) from the fuel tank unit
to the fuel tank.
3. Align the marks (B) on the fuel tank and the fuel tank unit, then insert the fuel tank unit into the fuel
tank until it sits on the base gasket.
NOTE: To prevent a fuel leak, check the base gasket,
visually or by hand, to make sure it is not pinched.
(cont’d)
08/08/21 14:30:58 61SNR030_110_0335
ProCarManuals.com
DYNOMITE -2009-