Mazda Protege 5. Manual - part 151

 

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Mazda Protege 5. Manual - part 151

 

 

FUEL SYSTEM 

01–14–29

01–14

(2) Lift the tab on the blue locking coupler until 

the fuel line can be released.

(3) Pull the fuel hose straight back.

Note

The blue stopper may be removed from the 
quick connector. Take care not to lose it. 
Reinstall it to the quick release connector 
before reconnecting the fuel line.

The orange locking coupler has two internal 
locking tabs which retain the pulsation 
damper pipe. Be sure that the tab on the 
locking coupler is rotated until it stops to 
release two internal locking tabs.

4. Push the SST quick release connector into the 

fuel distributor and fuel main hose into the SST 
until a click is heard.

5. Turn the lever on the SST as shown.
6. Connect the battery negative cable.
7. Start the engine and let it idle.
8. Measure the fuel line pressure after approx. 2 

min.

Fuel line pressure

210—250 kPa {2.1—2.6 kgf/cm

2

, 30—36 psi}

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FUEL SYSTEM 

01–14–30

9. Disconnect the vacuum hose from the pressure 

regulator and measure the fuel line pressure.

Fuel line pressure

270—310 kPa {2.7—3.2 kgf/cm

2

, 39—45 psi}

10. Turn the ignition switch off.

11. Disconnect the SST.

Note

A checker tab is integrated with the quick 
release connector for new plastic fuel hoses. 
The checker tab will be released from the 
quick release connector after it is completely 
engaged with the fuel pipe.

12. Inspect the plastic fuel hose and pulsation 

damper sealing surface for damage and 
deformation, and replace if necessary.

If the quick release connector O-ring is 
damaged or has slipped, replace the plastic 
fuel hose.

13. Apply a small amount of clean engine oil to the sealing surface of the pulsation damper.
14. Reconnect the plastic fuel hose straight to the pulsation damper until a click is heard.
15. Lightly pull and push the quick release connector a few times by hand and verify that it can move 2.0—3.0 mm 

{0.08—0.11 in} and it is connected securely.

If quick release connector does not move at all, verify that O-ring is not damaged and slipped, and 
reconnect the quick release connector.

16. Attach the lock clip to the quick release connector 

in the direction of the fuel distributor and lock it, 
as shown in the figure.

17. Complete the “AFTER REPAIR PROCEDURE”. 

(See 01–14–5 AFTER REPAIR PROCEDURE.)

End Of Sie

PULSATION DAMPER REMOVAL/INSTALLATION

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1. Remove and install the pulsation damper. (See 01–14–21 FUEL INJECTOR REMOVAL/INSTALLATION.)

End Of Sie

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FUEL SYSTEM 

01–14–31

01–14

PULSATION DAMPER INSPECTION

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1. Remove the pulsation damper. (See 01–14–21 FUEL INJECTOR REMOVAL/INSTALLATION.)
2. Visually inspect the pulsation damper for damage and cracks. Also inspect that there is no extreme rust which 

will cause fuel leakage.

If either is observed, replace the pulsation damper.

End Of Sie

PRC SOLENOID VALVE REMOVAL/INSTALLATION

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1. Remove and install the PRC solenoid valve.

Remove the PRC solenoid valve from the intake manifold. (See 01–13A–5 INTAKE-AIR SYSTEM 
REMOVAL/INSTALLATION [ZM].)

End Of Sie

PRC SOLENOID VALVE INSPECTION

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Airflow Inspection

Note

Perform the following test only as directed.

1. Carry out the “Pressure Regulator Control Inspection”. (See 01–03A–59 Pressure Regulator Control 

Inspection.) (See 01–03B–58 Pressure Regulator Control Inspection.)

If not as specified, perform the further inspection for the PRC solenoid valve.

2. Disconnect the negative battery cable.
3. Remove the PRC solenoid valve.
4. Inspect airflow between each port under the 

following conditions.

If not as specified, replace the PRC solenoid 
valve.

If as specified but the “Pressure Regulator 
Control Inspection” failed, carry out the 
“Circuit Open/Short Inspection”.
— If there is an open or short circuit, repair 

or replace wiring harnesses.

— If there is no open or short circuit, replace 

PRC solenoid valve.

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FUEL SYSTEM 

01–14–32

Circuit Open/Short Inspection

1. Remove the PCM.
2. Connect the SST (104 Pin Breakout Box) to the 

PCM as shown.

3. Tighten the connector attaching screw.

Tightening torque

7.9—10.7 N·m {80—110 kgf·cm, 69.5—95.4 

in·lbf}

4. Inspect for an open or short circuit in the following 

wiring harnesses by probing the applicable 
sensor and SST (104 Pin Breakout Box) terminals 
with ohmmeter leads.
Open circuit

Power circuit (PRC solenoid valve connector 
terminal A and main relay connector terminal D through common connector)

GND circuit (PRC solenoid valve connector terminal B and PCM connector terminal 95)

Short circuit

Power circuit (PRC solenoid valve connector terminal A and main relay connector terminal D through 
common connector to GND)

GND circuit (PRC solenoid valve connector terminal B and PCM connector terminal 95 to GND)

5. Reconnect the PRC solenoid valve connector.
6. Reconnect the negative battery cable.

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