Workshop Manuals Factory service & repair Alfa Romeo
01 General information02 Specifications03 Manufacturing data and tolerances04 Tightening torques05 Fluids and lubricants06 Maintenance07 Diagnostic checks08 Engine09 Clutch10 Gearbox and differential11 Axles and driveshafts12 Brakes13 Steering14 Suspension and wheels15 Heating, air conditioning and auxiliary units16 Electrical equipment17 Body fittings18 Body panels and frame19 Wiring diagrams and electrical functions20 Wiring harnesses21 Connectors and pin-outs22 Fault diagnosis23 Special tools
Alfa Romeo GT Factory Service Manual (2003-2010)08 · Engine
08 · Engine

Diesel injection wiring harness - r r

Make
Alfa Romeo
Model
GT Factory Service Manual
Year
2003–2010
Section
Diesel injection system › Diesel injection wiring harness - r r
EngineDiesel injection wiring harness - r r

DIESEL INJECTION WIRING HARNESS - R R

Operation 1060G90 · PRESSURE PUMP ELECTRIC CONTROL

1.9 JTD 16V

Removing

Position the vehicle on the ramp

Ensure that the ignition key is in the OFF position, then disconnect the negative battery terminal (-).

NameConnector
BatterySee A1B BATTERY ( BATTERY NEGATIVE )

Proceed with removal

- 1016A10 sound-proofing cover - r + r

Proceed with removal

Proceed with removal

Op. 7055B54 UNDER-ENGINE GUARD - R R

1. Disconnect the electrical connection from the engine oil pressure warning light switch.

2. Disconnect the electrical connection for the engine oil level sensor.

Op. 1076B70 EXHAUST PIPE BETWEEN PRE-CATALYTIC CONVERTER AND CATALYTIC CONVERTER - R R

3. Disconnect the electrical connection for the rpm sensor.

NameConnector
1Engine oil pressure sensorSee K30 ENGINE OIL PRESSURE SENSOR SWITCH ( CONNECTORS )
NameConnector
2Engine oil level sensorSee K32 ENGINE OIL LEVEL SENSOR
NameConnector
3Rpm sensorSee K46 RPM SENSOR ( CONNECTORS )
DIESEL INJECTION WIRING HARNESS - R R

1. Disconnect the earth lead from the alternator.

NameConnector
1AlternatorSee A10 ALTERNATOR

2. Disconnect the earth lead from the starter motor.

NameConnector
2Starter'' motorSee A20 STARTER'' MOTOR
DIESEL INJECTION WIRING HARNESS - R R

1. Disconnect the electrical connection from the solenoid on the vacuum tank.

NameConnector
1Butterfly casing solenoid valveSee L62 BUTTERFLY CASING SOLENOID VALVE
DIESEL INJECTION WIRING HARNESS - R R

1. Disconnect the electrical connection from the turbocharger vane actuator solenoid.

NameConnector
1Variable geometry control solenoidSee L15 VARIABLE GEOMETRY CONTROL SOLENOID ( CONNECTORS )
DIESEL INJECTION WIRING HARNESS - R R

1. Disconnect the electrical connection from the air flow meter.

NameConnector
1Air flow meterSee K41 AIR FLOW METER ( FRONT )
DIESEL INJECTION WIRING HARNESS - R R

1. Disconnect the electrical connection from the engine coolant temperature sensor and release the wiring from the bands.

NameConnector
1Engine temperature sender unitSee K36 ENGINE TEMPERATURE SENDER UNIT ( CONNECTORS )
DIESEL INJECTION WIRING HARNESS - R R

1. Disconnect the electrical connections from the injectors.

NameConnector
1InjectorSee N70 INJECTOR

2. Disconnect the electrical connection from the cam angle sensor.

NameConnector
2Timing sensor.See K47 TIMING SENSOR. ( CONNECTORS )

3. Disconnect the electrical connection for the air conditioning compressor.

NameConnector
3Air conditioning compressor engagement electro-magnetSee L20 AIR CONDITIONING COMPRESSOR ENGAGEMENT ELECTRO-MAGNET ( CONNECTORS )

Release the electrical wiring from the band on the timing cover.

4. Undo the bolts fastening the cable duct and move the electrical wiring aside.

DIESEL INJECTION WIRING HARNESS - R R

1. Disconnect the electrical connections from the heater plugs.

NameConnector
1Heater plugSee A40 HEATER PLUGS (CYL. 1)

2. Disconnect the electrical connection from the fuel pressure sensor.

NameConnector
2Fuel pressure sensorSee K83 FUEL PRESSURE SENSOR

3. Disconnect the electrical connection from the excess pressure sensor.

NameConnector
3Turbocharging sensorSee K82 TURBOCHARGING SENSOR

4. Disconnect the electrical connection from the E.G.R. valve.

NameConnector
4EGR solenoidSee L30 EGR SOLENOID
DIESEL INJECTION WIRING HARNESS - R R

1. Disconnect the electrical connection from the fuel pressure regulator.

NameConnector
1Fuel pressure regulatorSee N77 FUEL PRESSURE REGULATOR ( CONNECTORS )

2. Disconnect the rapid attachment for the fuel return pipe to the tank, fuel return manifold pipe side.

DIESEL INJECTION WIRING HARNESS - R R

1. Undo the nuts (1a) and lift up the heater plugs control unit (1b) as much as necessary.

2. Disconnect the electrical connection from the pre-heating control unit.

NameConnector
2Plug preheating control unitSee M15 PLUG PREHEATING CONTROL UNIT
DIESEL INJECTION WIRING HARNESS - R R

Proceed with removal

Op. 1008C10 POWER UNIT UPPER REACTION LINK R R

1. Connect the electrical connections to the diesel electronic injection control unit.

2. Disconnect the front engine coupling.

NameConnector
1Engine management control unitSee M10A ENGINE MANAGEMENT CONTROL UNIT ( FRONT )
NameConnector
2Front/engine connectionSee D4 FRONT/ENGINE CONNECTION ( CONNECTORS )
DIESEL INJECTION WIRING HARNESS - R R

1. Release the spark plug cable loom from the securing bands and remove it.

DIESEL INJECTION WIRING HARNESS - R R

Refitting

Place the cable loom back in its housing and fix it using the bands.

Connect the front engine coupling.

Connect the electrical connection to the diesel electronic injection control unit.

Connect the rapid attachment for the fuel return pipe to the tank, fuel return manifold pipe side.

Proceed with refitting

Op. 1008C10 POWER UNIT UPPER REACTION LINK R R.

Connect the electrical connection to the pre-heating control unit.

Place the heater plugs control unit back in its housing and secure it using the nuts.

Connect the electrical connection to the fuel pressure regulator.

Connect the electrical connection to the E.G.R. valve.

Connect the electrical connection to the excess pressure sensor.

Connect the electrical connection to the fuel pressure sensor.

Connect the electrical connections to the heater plugs.

Tighten the cable duct fixing bolts.

Fasten the electrical wiring to the band on the timing cover.

Connect the electrical connection to the air conditioner compressor.

Connect the electrical connection to the cam angle sensor

Connect the electrical connections to the injectors.

Connect the electrical connection to the engine coolant temperature sensor and fasten the wiring to the bands.

Connect the electrical connection to the air flow meter.

Connect the electrical connection to the turbocharger vane actuator solenoid.

Connect the electrical connection to the solenoid on the vacuum tank.

Connect the earth lead to the starter motor.

Connect the earth lead to the alternator.

Connect the electrical connection for the rpm sensor.

Connect the electrical connection for the engine oil level sensor.

Connect the electrical connection to the engine oil pressure warning light switch.

Proceed with refitting

Op. 1076B70 EXHAUST PIPE BETWEEN PRE-CATALYTIC CONVERTER AND CATALYTIC CONVERTER - R R.

Proceed with refitting

Op. 7055B54 UNDER-ENGINE GUARD - R R.

Proceed with refitting

- 1016A10 sound-proofing cover - r + r

Connect the negative (-) battery terminal

Remove the car from the ramps.

Parts & tools for this job Staging For 2003 Alfa Romeo GT

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