Ford Falcon. Manual — part 176

303-04b-14

Fuel Charging and Controls — Turbocharger

303-04b-14

DIAGNOSIS AND TESTING (Continued)

Test Step

Result / Action to Take

C4

CHECK THE BOOST PRESSURE SENSOR

Yes

NOTE:

The Failure Mode Effects Management (FMEM) strategy will, in

REPLACE the boost pressure sensor.

most cases, ensure reasonable operation of the vehicle in the event of a

REFER to Removal and Installation - Boost

BPS failure. If the BPS signal is not within the normal operating range, the

Pressure Sensor.

PCM will substitute a default value for pre-throttle absolute pressure and

TEST the sensor.

use MAP for boost control. The appropriate trouble code will be logged in
memory for retrieval during Self Test mode.

No

Go to C5

Connect a WDS tester to the diagnostic connector.

Check the Parameter Identification (PID) value of the BPS. At
Key-On-Engine-Off (KOEO) the value should be between 1.8 - 2.2
Volts.

Is the PID value within the specified limits?

C5

CHECK THE BOOST PRESSURE

Yes

NOTE:

The boost pressure is factory set and must not be adjusted.

Go to C6

Start and run the engine until normal operating temperature is

No

achieved.

REPLACE the boost pressure sensor.

Connect a WDS tester to the diagnostic connector.

REFER to Removal and Installation - Boost
Pressure Sensor.

Run the engine at idle and observe the Parameter Identification (PID)

TEST the sensor.

value of the BPS. The value should be between 1.8 - 1.9 Volts (this
equates to 0.5 bar of boost).

Is the PID value within the specified limits?

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Fuel Charging and Controls — Turbocharger

303-04b-15

DIAGNOSIS AND TESTING (Continued)

Test Step

Result / Action to Take

C6

CHECK THE CHARGE AIR COOLER AND DUCTING

Remove the air ducting that runs to and from the charge air cooler.

Yes

REFER to Removal and Installation - Charge Air Cooler.

Unblock or replace components as required.
REFER to Removal and Installation - Charge Air

Inspect the components for cracks, leaks or blockages.

Cooler.
TEST the system for normal operation.

Remove the charge air cooler. REFER to Removal and Installation -
Charge Air Cooler.

No

Inspect the cooler for cracks, leaks or blockages.

TEST the fuel system. REFER to Section
310-00.

Are any blocked or damaged components evident?

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303-04b-16

Fuel Charging and Controls — Turbocharger

303-04b-16

REMOVAL AND INSTALLATION

5. Disconnect the water inlet tube from the

Turbocharger

turbocharger.

Removal

1. Discard the sealing washers.

All vehicles

6. Disconnect the water outlet tube from the

turbocharger.

1. Disconnect the battery ground cable. For

1. Discard the sealing washers.

additional information, refer to Section 414-01.

2. Remove the fresh air duct from the turbocharger.

1. Unscrew the hose clamps.

2. Remove the pipe.

Item

Description

1

Water Inlet

2

Water Outlet

3. Detach the charge air cooler intake duct from the

7. Disconnect the oil supply tube from the

turbocharger.

turbocharger.

1. Unscrew the hose clamp.

1. Discard the sealing washers.

2. Remove the duct.

8. Disconnect the oil return tube from the

turbocharger.

1. Discard the gasket.

4. Disconnect the HEGO sensor wiring connector at

the chassis rail.

Item

Description

1

Oil supply line

2

Oil return line

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Fuel Charging and Controls — Turbocharger

303-04b-17

REMOVAL AND INSTALLATION (Continued)

9. Remove the exhaust manifold and turbocharger

13. Remove the exhaust manifold, turbocharger and

heatshields.

dump-pipe as a complete assembly.

1. Remove the 5 exhaust manifold and heat

1. Discard exhaust manifold gasket.

shield retaining bolts from the cylinder head.

2. Remove the two heat shield retaining screws.

3. Remove the two heat shields.

14. Inspect the condition of the engine mount

heatshield.

1. Replace if damaged.

10. Disconnect the exhaust catalyst pipe from the

15. Inspect the condition of the H-Brace.

dump-pipe.

1. Replace if damaged.

11. Disconnect the turbocharger from the H-Brace.

16. Remove the Dump-Pipe.

1. Remove and discard the two lower

1. Remove and discard the five retaining nuts.

turbocharger nuts to disconnect the H-Brace.

2. Discard the gasket.

3. Inspect the threads on the studs. Replace if

damaged.

12. Remove the remaining exhaust manifold retaining

bolts from the engine.

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