Honda CR-V: Fuel Pressure Relieving

Before disconnecting fuel lines or hoses, relieve pressure from the system by disabling the fuel pump and then disconnecting the fuel tube/quick connect fitting in the engine compartment.

With the HDS

1. Make sure you have the anti-theft code for the audio system.

2. Remove the fuel fill cap, to relieve the pressure in the fuel tank.

3. Turn the ignition switch ON (II).

4. From the INSPECTION MENU of the HDS, select Fuel Pump OFF, then start the engine, and let it idle until it stalls.

NOTE:

5. Turn the ignition switch OFF.

6. Disconnect the negative cable from the battery.

7. Remove the quick-connect fitting cover (A).

Honda CR-V. Fuel Pressure Relieving

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).

Honda CR-V. Fuel Pressure Relieving

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:

Honda CR-V. Fuel Pressure Relieving

11. After disconnecting the quick-connect fitting, check it for dirt or damage (see step 4).

12. Reconnect the negative cable to the battery, then do this:

Without the HDS

1. Make sure you have the anti-theft code for the audio system.

2. Remove the under-dash fuse/relay box, then remove PGM-FI main relay 2 (FUEL PUMP) (A) from the under-dash fuse/relay box.

Honda CR-V. Fuel Pressure Relieving

3. Reinstall the under-dash fuse/relay box.

4. Start the engine, and let it idle until it stalls.

NOTE: If any DTCs are stored, clear and ignore them.

5. Turn the ignition switch OFF.

6. Remove the fuel fill cap.

7. Disconnect the negative cable from the battery.

8. Remove the quick-connect fitting cover (A).

Honda CR-V. Fuel Pressure Relieving

9. Check the fuel quick-connect fitting for dirt, and clean it if needed.

10. Place a rag or shop towel over the quick-connect fitting (A).

Honda CR-V. Fuel Pressure Relieving

11. 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:

Honda CR-V. Fuel Pressure Relieving

12. After disconnecting the quick-connect fitting, check it for dirt or damage (see step 4 ).

13. Reconnect the negative cable to the battery, then do this:

Fuel Pressure Test

Special Tools Required

1. Relieve the fuel pressure.

2. Disconnect the quick-connect fitting. Attach the fuel pressure gauge set and the fuel pressure gauge.

Honda CR-V. Fuel Pressure Test

3. Start the engine, and let it idle.

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.

5. Read the fuel pressure gauge. The pressure should be 320-370 kPa (3.3-3.8 kgf/cm2, 47-54 psi).

Fuel Tank Draining

1. Remove the fuel tank unit.

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.

Fuel Line Inspection

Check the fuel system lines and hoses for damage, leaks, and deterioration. Replace any damaged parts.

Honda CR-V. Fuel Line Inspection

Check all clamps, and retighten if necessary.

Honda CR-V. Fuel Line Inspection

Honda CR-V. Fuel Line Inspection

Fuel Line/Quick-Connect Fitting Precautions

The fuel line/quick-connect fittings (C), (D), (E), (F), (G), and (H) connect the fuel rail (I) to fuel feed hose A, fuel feed hose A to fuel feed hose B, fuel feed hose B to the fuel line (J), the fuel line (K) to the fuel tank unit (L), the fuel vapor line (M) to the EVAP canister (N), the fuel tank vapor control valve hose (O) to the fuel tank vapor/ liquid separator valve hose (P), and the fuel tank vapor recirculation tube (Q) to the joint (R). When removing or installing the fuel feed hose, the fuel tank unit, or the fuel tank, it is necessary to disconnect or connect the quick-connect fittings.

Pay attention to the following:

Honda CR-V. Fuel Line/Quick-Connect Fitting Precautions

Honda CR-V. Fuel Line/Quick-Connect Fitting Precautions

Honda CR-V. Fuel Line/Quick-Connect Fitting Precautions

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:

Honda CR-V. Fuel Line/Quick-Connect Fitting Precautions

Fuel Line/Quick-Connect Fitting Removal

NOTE: Before you work on the fuel lines and fittings, read the "Fuel Line/Quick-Connect Fitting Precautions".

1. Relieve the fuel pressure.

2. Check the fuel quick-connect fittings (A) for dirt, and clean them if needed.

Honda CR-V. Fuel Line/Quick-Connect Fitting Removal

Honda CR-V. Fuel Line/Quick-Connect Fitting Removal

3. Place a rag or shop towel over the quick-connect fitting. 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:

Honda CR-V. Fuel Line/Quick-Connect Fitting Removal

4. Check the contact area (A) of the line (B) for dirt or damage.

Honda CR-V. Fuel Line/Quick-Connect Fitting Removal

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:

Honda CR-V. Fuel Line/Quick-Connect Fitting Removal

Fuel Line/Quick-Connect Fitting Installation

NOTE: Before you work on the fuel lines and fittings, read the "Fuel Line/Quick-Connect Fitting Precautions".

1. Check the contact area (A) of the line (B) for dirt or damage, and clean it if needed.

Honda CR-V. Fuel Line/Quick-Connect Fitting Installation

2. Insert a new retainer (A) into the connector (B) if the retainer is damaged, or after:

Honda CR-V. Fuel Line/Quick-Connect Fitting Installation

3. Before connecting a new fuel tube/quick-connect fitting assembly (A), remove the old retainer (B) from the mating line.

Honda CR-V. Fuel Line/Quick-Connect Fitting Installation

Honda CR-V. Fuel Line/Quick-Connect Fitting Installation

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.

Connection with new retainer

Honda CR-V. Fuel Line/Quick-Connect Fitting Installation

Connection to new fuel line

Honda CR-V. Fuel Line/Quick-Connect Fitting Installation

Reconnection to existing retainer

Honda CR-V. Fuel Line/Quick-Connect Fitting Installation

5. When you are reconnecting 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 are replacing 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.

Reconnection to existing retainer

Honda CR-V. Fuel Line/Quick-Connect Fitting Installation

Connection to new fuel line

Honda CR-V. Fuel Line/Quick-Connect Fitting Installation

6. Reconnect the negative cable to the battery, and turn the ignition switch ON (II) (but do not operate the starter motor). The fuel pump will run for about 2 seconds, and fuel pressure will rise. Repeat two or three times, and check that there is no leakage in the fuel supply system.

Fuel Tank Unit Removal/Installation

Special Tools Required

Fuel sender wrench 07 AAA-SOXA 100

Removal

1. Relieve the fuel pressure.

2. Remove the fuel fill cap.

3. Fold the left side rear seat forward, and pull back the carpet to expose the access panel.

4. Remove the access panel (A) from the floor.

Honda CR-V. Fuel Tank Unit Removal/Installation

5. Disconnect the fuel tank unit 4P connector (B).

6. Disconnect the quick-connect fitting (C) from the fuel tank unit.

7. Using the special tool, loosen the locknut (A).

Honda CR-V. Fuel Tank Unit Removal/Installation

8. Remove the locknut (A) and the fuel tank unit (B).

Honda CR-V. Fuel Tank Unit Removal/Installation

Installation

1. Install a new base gasket (A) and the locknut plate (B) to the fuel tank (C).

Honda CR-V. Fuel Tank Unit Removal/Installation

2. Insert the fuel tank unit (D) into the fuel tank. Be careful not to bend the fuel gauge sending unit.

3. Align the marks (E) on the fuel tank and the fuel tank unit, then tighten a new locknut (F) by hand.

NOTE:

4. Using the tool, tighten the fuel tank unit locknut (A).

NOTE: After installation, check the base gasket visually or by hand to be sure the gasket is not pinched.

Honda CR-V. Fuel Tank Unit Removal/Installation

Fuel Pressure Regulator Replacement

1. Remove the fuel tank unit.

2. Remove the reservoir (A).

Honda CR-V. Fuel Pressure Regulator Replacement

3. Remove the bracket (B).

4. Remove the ground (C).

5. Remove the fuel pressure regulator (D).

6. Install the parts in the reverse order of removal with new O-rings (E) and a new bracket. When installing the fuel tank unit, align the marks on the unit and the fuel tank.

NOTE: Coat the O-rings with clean engine oil; do not use any other oils or fluids.

Do not pinch the O-rings during installation.

Fuel Filter Replacement

The fuel filter should be replaced whenever the fuel pressure drops below the specified value, after making sure that the fuel pump and the fuel pressure regulator are OK.

1. Remove the fuel tank unit.

2. Remove the fuel filter set (A).

Honda CR-V. Fuel Filter Replacement

3. Check these items before installing the fuel tank unit:

4. Install the parts in the reverse order of removal with new O-rings (D). When installing the fuel tank unit, align the marks on the unit and the fuel tank.

NOTE: Coat the O-rings with clean engine oil.

Fuel Pump/Fuel Gauge Sending Unit Replacement

1. Remove the fuel tank unit.

2. Remove the fuel level sensor (fuel sending unit) (A) from the fuel tank unit (B).

Honda CR-V. Fuel Pump/Fuel Gauge Sending Unit Replacement

3. Check these items before installing the fuel tank unit:

4. Install the parts in the reverse order of removal.

When installing the fuel tank unit, align the marks on the unit and the fuel tank.

Fuel Tank Replacement

1. Drain the fuel tank, then disconnect the fuel tank unit 4P connector (A) and the quick-connect fittings (B).

Honda CR-V. Fuel Tank Replacement

2. Lift the vehicle, and support it with jackstands.

3. Remove the EVAP canister.

4. Remove the cover (C) and the fuel tank guard (D).

5. 4WD model: Remove the propeller shaft.

6. Remove the exhaust pipe.

7. Disconnect the hoses (E). Slide back the clamps, then twist the hoses as you pull to avoid damaging them.

8. Place a jack or other support under the tank (F).

9. Remove the strap bolts and the straps (G).

10. Remove the fuel tank.

11. Install the parts in the reverse order of removal.

Fuel Fill Pipe Removal/Installation

1. Relieve the fuel pressure.

2. Drain the fuel tank.

3. Remove the fuel fill cap.

4. Remove the fuel fill pipe cover (A) and the fuel fill cap adapter (B).

Honda CR-V. Fuel Fill Pipe Removal/Installation

5. Remove the rear wheel and wheel sensors.

6. Support the rear differential (4WD model), and the rear axle beam with a transmission jack.

7. Remove the flange bolts from the bottom of the rear damper/springs.

8. Remove the rear differential (4WD model) and the rear suspension subframe mounting bolts.

9. Lower the transmission jack (A) and the rear differential or axle beam.

NOTE: Be careful not to damage the connecting parts.

Honda CR-V. Fuel Fill Pipe Removal/Installation

10. Disconnect the fuel fill tube (A) and the fuel vapor hose (B).

Honda CR-V. Fuel Fill Pipe Removal/Installation

11. Remove the fuel fill pipe (C).

12. Install the parts in the reverse order of removal.

Fuel Gauge Sending Unit Test

NOTE: For the fuel gauge system circuit diagram, refer to the Gauges Circuit Diagram.

1. Check the No. 10 METER (7.5 A) fuse in the under-dash fuse/relay box before testing.

2. Check for body electrical system DTCs.

3. Turn the ignition switch OFF.

4. Fold the left side rear seat forward, and pull back the carpet to expose the access panel.

5. Remove the access panel (A) from the floor.

Honda CR-V. Fuel Gauge Sending Unit Test

6. Disconnect the fuel tank unit 4P connector (B).

7. Measure voltage between fuel tank unit 4P connector terminals No. 1 and No.3 with the ignition switch ON (II). There should be battery voltage.

Honda CR-V. Fuel Gauge Sending Unit Test

8. Turn the ignition switch OFF.

9. Remove the fuel tank unit from the fuel tank.

10. Measure resistance between fuel tank unit 4P connector terminals No.1 and No.3 with the float at E (EMPTY), LOW (LOW FUEL INDICATOR), 1/2 (HALF FULL), and F (FULL) positions.

If you do not get the following readings, replace the fuel gauge sending unit.

Honda CR-V. Fuel Gauge Sending Unit Test

11. Reconnect the fuel tank unit 4P connector.

12. Remove the No. 23 BACK UP (10 A) fuse from the under-hood fuse/relay box for at least 10 seconds, then reinstall it.

13. Turn the ignition switch ON (II).

14. Check that the pointer of the fuel gauge indicates "F" with the float at F.

NOTE:

Low Fuel Indicator Test

1. Do the gauge self-diagnostic test.

2. Check for body electrical system DTCs.

3. Do the fuel gauge sending unit test.

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