ACURA CSX 2006 Service Repair Manual

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Without the HDS
11-323
A
B C
E
D
A
14. Disconnect the quick-connect fitting (A): Hold the
connector (B) with one hand, and squeeze the
retainer tabs (C) with the other hand to release
them from the locking tabs (D). Pull the connector
off.
NOTE: Be careful not to damage the line (E) 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.
15. After disconnecting the quick-connect fitting, check it for dirt or damage (see step 4 on page 11-330).
16. Do the battery terminal reconnection procedure (see page 22-68). 1. Remove the under-dash fuse/relay box (see page
22-66), then remove PGM-Fl main relay 2 (FUEL
PUMP) (A) from the under-dash fuse/relay box.
2. Reinstall the under-dash fuse/relay box.
3. Start the engine, and let it idle until it stalls. NOTE: If any DTCs are stored, clear and ignore
them.
4. Turn the ignition switch to LOCK (0).
5. Remove the fuel fill cap.
6. Do the battery terminal disconnection procedure (see page 22-68).
(cont’d)
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11-324Fuel Supply System
Fuel Pressure Relieving (cont’d)
A
A A
B C
E
D
7. Remove the quick-connect fitting cover (A).
8. Check the fuel quick-connect fitting for dirt, and
clean it if needed.
9. Place a rag or shop towel over the quick-connect fitting (A). 10. Disconnect the quick-connect fitting (A): Hold the
connector (B) with one hand, and squeeze the
retainer tabs (C) with the other hand to release
them from the locking tabs (D). Pull the connector
off.
NOTE: Be careful not to damage the line (E) 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.
11. After disconnecting the quick-connect fitting, check it for dirt or damage (see step 4 on page 11-330).
12. Do the battery terminal reconnection procedure (see page 22-68).
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 Special Tools Required
11-32511-325
Fuel Pressure Test Fuel Tank Draining
07406-004000B
07AAJ-S6MA150
 Fuel pressure gauge 07406-004000B
 Fuel pressure gauge attachment set 07AAJ-S6MA150 1. Relieve the fuel pressure (see page 11-322).
2. Disconnect the quick-connect fitting. Attach the fuel pressure gauge set and the fuel pressure gauge.
3. Start the engine, and let it idle.  If the engine starts, go to step 5.
 If the engine does not start, go to step 4.
4. Check to see if the fuel pump is running: Listen to the fuel filler port with the fuel fill cap removed.
The fuel pump should run for 2 seconds when the
ignition switch is first turned on.
 If the pump runs, go to step 5.
 If the pump does not run, do the fuel pump circuit troubleshooting (see page 11- 318).
5. Read the fuel pressure gauge. The pressure should be 330 380 kPa (3.4 3.9 kgf/cm , 48 55 psi).
 If the pressure is OK, the test is complete.
 If the pressure is out of specification, replace the fuel pressure regulator (see page 11-337) and the
fuel filter (see page 11-337), then recheck the fuel
pressure. 1. Remove the fuel tank unit (see page 11-334).
2. Using a hand pump, a hose, and a container
suitable for fuel, draw the fuel from the fuel tank.
3. Reinstall the fuel tank unit (see page 11-335).
2
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11-326Fuel Supply System
Fuel Line Inspection
Check the fuel system lines and hoses for damage, leaks, and deterioration. Replace any damaged parts.
Make sure the connections are
secure and the quick-connect
fitting covers are firmly locked in place.
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11-327
To FUEL RAILTo EVAPORATIVE
EMISSION (EVAP)
CANISTER PURGE VALVE BASE GASKET
FUEL TANK UNIT LOCKNUT
AB
A: B:
TOP SIDE
20 °
90 ° 19.5 °
115 °
LOCKNUT PLATE
Check all clamps, and make sure they are properly positioned.
Replace.
Replace.
When installing the
fuel fill neck tube,
align the mark on the
tube with the projection
on the fill neck fitting. Make sure the clamp is
positioned as shown. Make sure the clamp is
positioned as shown.
There should be
no clearance. Replace.
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(#'
) 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.
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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.
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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.
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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.
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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.
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