Mazda 2003 B4000 Bedienungsanleitung PDF herunterladen (Seite 11)

MA103

Mazda ReferenceMA014

11. Start the engine and check for leaks.

2003–06 Mazda6 2.3L and 3.0L, 2006 Mazdaspeed6 2.3L TC

z Procedure L

1. Disconnect the negative (–) battery cable.

2. Remove the fuel line Schrader valve cap located under the throttle body

(Figure MA014-11).

Figure MA014-11

3. Connect suitable fuel pressure gauge and adapter (Snap-on

gauge set MT3370A or

equivalent, or MODIS™, Vantage PRO

or Vantage

meter to read pressure through

0—100 psi transducer and suitable adapter).

4. Clean any resulting fuel leakage and dispose of properly.

5. Connect the negative (–) battery cable.

6. Verify that the shift lever is in the P or N for ATX vehicles, or neutral for MTX vehicles.

7. Start the engine and allow it to idle. Measure the fuel line pressure and compare it to the

specifications below.

Fuel Line Pressure

• 2.3L: 55–65 psi (375–450 kPa, 3.9–4.5 kgf/cm

)

• 12.3L TC 60–71 psi (410–490 kPa, 4.2–4.9 kgf/cm

)

• 3.0L: 63–73 psi (430–510 kPa, 4.4–5.2 kgf/cm

)

If not as specified, inspect the following:

Zero or Low Pressure:

• Fuel pump circuit

• Fuel pump

• Fuel line clog, dented or bent pipe, or kinked tubing

• Fuel leak inside pressure regulator (defective regulator)

High Pressure:

• Defective pressure regulator

8. Observe the fuel pressure reading during heavy acceleration.

9. Verify that the fuel pressure variation is within the specification during the test.

If not as specified, inspect the following:

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Mazda 2003 B4000 Bedienungsanleitung Seite 11