Mazda CX-9 Grand Touring 2007 Bedienungsanleitung

2007 ENGINE PERFORMANCE

Intake-Air System (MZI-3.5) - CX-9

INTAKE-AIR SYSTEM LOCATION INDEX [MZI-3.5]

Fig. 1: Identifying Intake-Air System Components

INTAKE-AIR SYSTEM DIAGRAM [MZI-3.5]

2007 Mazda CX-9 Grand Touring

2007 ENGINE PERFORMANCE Intake-Air System (MZI-3.5) - CX-9

2007 Mazda CX-9 Grand Touring

2007 ENGINE PERFORMANCE Intake-Air System (MZI-3.5) - CX-9

Microsoft

Fig. 2: Intake-Air System Diagram

INTAKE-AIR SYSTEM VACUUM HOSE ROUTING DIAGRAM [MZI-3.5]

2007 Mazda CX-9 Grand Touring

2007 ENGINE PERFORMANCE Intake-Air System (MZI-3.5) - CX-9

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Fig. 3: Intake-Air System Vacuum Hose Routing Diagram

INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [MZI-3.5]

1. Complete the "BEFORE REPAIR PROCEDURE". (see BEFORE REPAIR PROCEDURE [MZI-

3.5] .)

2. Remove the batter

. (see BATTERY REMOVAL/INSTALLATION [MZI-3.5] .)

WARNING: When the engine and intake-air system are hot, they can badly burn.

Turn off the engine and wait until they are cool before removing the

intake-air system.

Fuel vapor is hazardous. It can easily ignite, causing serious injury

and damage. Always keep sparks and flames away from fuel.

Fuel line spills and leakage are dangerous. Fuel can ignite and cause

serious injuries or death and damage. Fuel can also irritate skin and

eyes. To prevent this, always complete the "Fuel Line Safety

Procedure".

2007 Mazda CX-9 Grand Touring

2007 ENGINE PERFORMANCE Intake-Air System (MZI-3.5) - CX-9

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3. Remove the engine cover. (see ENGINE COVER REMOVAL/INSTALLATION [MZI-3.5] .)

4. Remove in the order indicated in the table.

5. Install in the reverse order of removal.

6. Complete the "AFTER REPAIR PROCEDURE". (see AFTER REPAIR PROCEDURE [MZI-3.5] .)

2007 Mazda CX-9 Grand Touring

2007 ENGINE PERFORMANCE Intake-Air System (MZI-3.5) - CX-9

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Fig. 4: Identifying Intake-Air System Components With Torque Specifications

INTAKE MANIFOLD REMOVAL NOTE

2007 Mazda CX-9 Grand Touring

2007 ENGINE PERFORMANCE Intake-Air System (MZI-3.5) - CX-9

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1. Drain the engine coolant. (see ENGINE COOLANT REPLACEMENT [MZI-3.5] .)

2. Disconnect the upper radiator hose.

Fig. 5: Identifying Intake Manifold Components

3. Disconnect the lower radiator hose.

4. Disconnect the two water hose from the thermostat component.

5. Disconnect the thermostat component side of the water inlet pipe which is under the intake manifold.

6. Remove the intake manifold and thermostat component as a single unit.

7. Remove the thermostat component from the intake manifold.

2007 Mazda CX-9 Grand Touring

2007 ENGINE PERFORMANCE Intake-Air System (MZI-3.5) - CX-9

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Fig. 6: Identifying Thermostat Components With Torque Specifications

INTAKE MANIFOLD INSTALLATION NOTE

1. Tighten the intake manifold installation bolts in the order shown.

Intake manifold installation bolt tightening torque

8.5-11.5 N.m {87-117 kgf.cm, 76-101 in.lbf}

Fig. 7: Identifying Intake Manifold Bolt Tightening Sequence

DYNAMIC CHAMBER INSTALLATION NOTE

1. Tighten the dynamic chamber installation bolts in the order shown.

Dynamic chamber installation bolt tightening torque

8.5-11.5 N.m {87-117 kgf.cm, 76-101 in.lbf}

2007 Mazda CX-9 Grand Touring

2007 ENGINE PERFORMANCE Intake-Air System (MZI-3.5) - CX-9

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Fig. 8: Identifying Dynamic Chamber Bolt Tightening Sequence

AIR CLEANER ELEMENT INSPECTION [MZI-3.5]

1. Remove the air cleaner element. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [MZI-

3.5].)

2. Verify that the air cleaner element surface is free of dirt.

If there is dirt, use an air gun or similar tool to clean the element.

If the replacement time limit has passed, replace the element.

THROTTLE BODY INSPECTION [MZI-3.5]

RESISTANCE INSPECTION

1. Disconnect the negative battery cable. (see BATTERY REMOVAL/INSTALLATION [MZI-3.5] .)

2. Remove the engine cover. (see ENGINE COVER REMOVAL/INSTALLATION [MZI-3.5] .)

3. Disconnect the throttle body connector.

4. Measure the resistance between throttle body terminals A and B.

If not as specified, replace the throttle body. (See INTAKE-AIR SYSTEM

REMOVAL/INSTALLATION [MZI-3.5].)

If as specified, carry out the "Circuit Open/Short Inspection".

Throttle body resistance

1-900 ohms

NOTE: Perform the following inspection only when directed.

2007 Mazda CX-9 Grand Touring

2007 ENGINE PERFORMANCE Intake-Air System (MZI-3.5) - CX-9

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Fig. 9: Identifying Throttle Body Connector Terminals

CIRCUIT OPEN/SHORT INSPECTION

1. Disconnect the PCM connector.

2. Inspect the following wiring harnesses for open or short (continuity check).

Fig. 10: Identifying Throttle Body Connector Terminals

Fig. 11: Identifying PCM Connector Terminals

2007 Mazda CX-9 Grand Touring

2007 ENGINE PERFORMANCE Intake-Air System (MZI-3.5) - CX-9

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Open circuit

If there is no continuity, the circuit is open. Repair or replace the wiring harness.

Throttle body terminal A and PCM terminal 2BO

Throttle body terminal B and PCM terminal 2BR

Short circuit

If there is continuity, the circuit is shorted. Repair or replace the wiring harness.

Throttle body terminal A and power supply

Throttle body terminal A and ground

Throttle body terminal B and power supply

Throttle body terminal B and ground

ACCELERATOR PEDAL REMOVAL/INSTALLATION [MZI-3.5]

1. Disconnect the negative battery cable. (see BATTERY REMOVAL/INSTALLATION [MZI-3.5] .)

2. Remove the dashboard under cover (Driver side). (see DASHBOARD UNDER COVER

REMOVAL/INSTALLATION .)

3. Remove in the order indicated in the table.

4. Install in the reverse order of removal.

Fig. 12: Identifying Accelerator Pedal And Electrical Connector With Torque Specifications

2007 Mazda CX-9 Grand Touring

2007 ENGINE PERFORMANCE Intake-Air System (MZI-3.5) - CX-9

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