Workshop Manuals Factory service & repair Alfa Romeo
Alfa Romeo Brera and Spider Factory Service Manual (2005-2010)08 · Engine
08 · Engine

System wiring harness on engine r r

Make
Alfa Romeo
Model
Brera and Spider Factory Service Manual
Year
2005–2010
Section
Petrol injection system › System wiring harness on engine r r
EngineSystem wiring harness on engine r r

SYSTEM WIRING HARNESS ON ENGINE R R

Operation 1056F94 · PETROL DIRECT INJECTION SYSTEM

2.2 JTS

Removing

- Position the vehicle on a lift.

Op. 1072B50 AIR CHAMBER - R.R.

Op. 5530B10 BATTERY - R+R

Op. 5530B52 BATTERY SUPPORT/DRIP TRAY - R.R

- Undo the bolts and remove the ignition coil cover.

1. Open the junction unit cover and disconnect the electrical connections.

DescriptionConnector
1Engine compartment junction unitSee B001 JUNCTION UNIT
SYSTEM WIRING HARNESS ON ENGINE R R

1. Disconnect the electrical connection from the electronic injection system control unit.

DescriptionConnector
1Engine management control unitSee M010 ENGINE MANAGEMENT ECU
SYSTEM WIRING HARNESS ON ENGINE R R

1. Disconnect the electrical connection from the fuel pressure regulator on the air intake/fuel manifold duct.

DescriptionConnector
1Fuel pressure regulatorSee N077 FUEL PRESSURE REGULATOR

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

DescriptionConnector
2Fuel pressure sensorSee K083 FUEL PRESSURE SENSOR
SYSTEM WIRING HARNESS ON ENGINE R R

1. Disconnect the electrical connection from the engine coolant temperature sensor.

DescriptionConnector
1Engine coolant temperature sensor/sender unitSee K036 ENGINE COOLANT TEMPERATURE SENSOR/SENDER UNIT
SYSTEM WIRING HARNESS ON ENGINE R R

1. Disconnect the electrical connections (1a) and (1b) from the phase transformer electromagnets.

DescriptionConnector
1aExhaust side phase transformer solenoid valveSee N093 PHASE SHIFTER SOLENOID VALVE ON EXHAUST SIDE
DescriptionConnector
1bInlet side phase transformer solenoid valveSee N092 PHASE SHIFTER SOLENOID VALVE ON INTAKE SIDE
SYSTEM WIRING HARNESS ON ENGINE R R

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

DescriptionConnector
1Air flow meterSee K041 AIR FLOW METER
SYSTEM WIRING HARNESS ON ENGINE R R

1. Disconnect the electrical connection of the air conditioner compressor.

DescriptionConnector
1Air conditioning compressor engagement electro-magnetSee L020 AIR CONDITIONING COMPRESSOR ENGAGEMENT ELECTRO-MAGNET
SYSTEM WIRING HARNESS ON ENGINE R R

1. Undo the nut (1a) and disconnect the earth lead (1b) from the alternator.

DescriptionConnector
1bAlternatorSee A010 ALTERNATOR
SYSTEM WIRING HARNESS ON ENGINE R R

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

DescriptionConnector
1Insufficient engine oil pressure sensor (switch)See K030 LOW ENGINE OIL PRESSURE SENSOR (SWITCH)

2. Disconnect the electrical connection from the engine rpm sensor.

DescriptionConnector
2Engine rpm sensorSee K046 RPM SENSOR
SYSTEM WIRING HARNESS ON ENGINE R R

1. Disconnect the electrical connections from the injectors.

DescriptionConnector
1InjectorSee N070 INJECTOR

2. Disconnect the electrical connection for the detonation sensor.

DescriptionConnector
2Detonation sensor - 2See K050 DETONATION SENSOR
SYSTEM WIRING HARNESS ON ENGINE R R

- Release the system cable loom from the fastenings and remove it.

Refitting

- Place the system cable loom in its housing and secure it.

- Connect the electrical connection for the detonation sensor.

- Connect the electrical connections to the injectors.

- Connect the electrical connection for the engine rpm sensor.

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

- Connect the earth lead to the alternator and tighten the nut.

- Connect the electrical connection to the air conditioning compressor.

- Connect the electrical connection to the air flow meter.

- Connect the electrical connections to the phase transformer electromagnets.

- Connect the electrical connection to the engine coolant temperature sensor.

- Connect the electrical connection to the fuel pressure sensor.

- Connect the electrical connection to the fuel pressure regulator on the air intake/fuel manifold duct.

- Connect the electrical connections to the electronic power module.

- Connect the electrical connections to the cam angle sensors.

- Connect the electrical connection to the electronic injection system control unit.

- Connect the electrical connections and close the junction unit cover.

- Place the ignition coil cover back in its housing and tighten the bolts.

Op. 5530B52 BATTERY SUPPORT/DRIP TRAY - R.R

Op. 5530B10 BATTERY - R+R

Op. 1072B50 AIR CHAMBER - R.R.

- Remove the vehicle from the lift.

3.2 JTS

This operation can only be carried out with the power unit removed, therefore refer to:

Op. 1004B10 POWER UNIT WITH MANUAL GEARBOX - R.R

Op. 1004D10 POWER UNIT (MANUAL GEARBOX), REMOVED, DISMANTLE AND REASSEMBLE

Op. 1004D40 ENGINE - POSITION ON STAND AND REMOVE

Op. 1004E10 ENGINE, REMOVED - REMOVE CYLINDER HEAD AND OIL SUMP FOR INSPECTION - INCLUDES POSITIONING ON STAND AND REMOVAL

Op. 1004E20 ENGINE - DISMANTLE AND REASSEMBLE FOLLOWING OPERATION 1004E10 - WASH AND CHECK DISMANTLED PARTS - REFIT CYLINDER HEAD AND OIL SUMP - DOES NOT INCLUDE REPAIRS TO CYLINDER HEAD AND AUXILIARY UNIT

Parts & tools for this job Staging For 2005 Alfa Romeo Brera

Links open Amazon search results in a new tab. As an Amazon Associate I earn from qualifying purchases.