1080B93 RIGHT UPPER LAMBDA SENSOR R R - Alfa - 147 - eLearn

3024877 - 1080B93 right upper lambda sensor r r

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

	Name	Connector
-	Battery	A1B

Proceed with removal - 1008C10 power unit upper reaction link r r .1. Loosen the band (1a) and disconnect the oil vapour recirculation pipe (1b) from the corrugated hose.2. Loosen the bands (2a) and remove the corrugated hose (2b), complete with resonator (2c).

1. Open the electrical connections box cover.2. Disconnect the electrical connection for the right Lambda sensor and release the wiring from the bands.

	Name	Connector
2	Lambda sensor on left pre-catalyzer	K16

3. Disconnect the electrical connection from the throttle body integrated with the D.V.L.

	Name	Connector
3	Throttle body actuator	N75

4. Loosen the band (4a) and disconnect the vacuum intake pipe (4b) from the air capacity chamber.5. Disconnect the fuel vapour recirculation pipe quick-release fitting from the air chamber.

1. Disconnect the electrical connection from the injection-ignition electronic control unit.

	Name	Connector
1	Engine management ECU	M10A

Proceed with removal - 7055B54 under-engine guard - r r .1. Undo the bolt (1a) and remove the bracket (1b) joining the exhaust pipes between the preconverters and the catalytic converters.

1. Undo the nuts fixing the exhaust pipes between the catalytic preconverters and converters, catalytic preconverter side.Remove the gaskets.Secure the exhaust pipe between the left catalytic preconverter and the catalytic converter at the side.

1. Position a hydraulic jack under the gearbox.2. Undo the bolts fixing the power unit gearbox side rigid support to the flexible mounting.Lower the hydraulic jack slowly, then remove it.

1. Undo the upper right Lambda sensor using a suitable spanner and remove it.

Refitting ( Removing

) 1. Place the right Lambda sensor back in its housing and tighten it to the recommended torque.

	Fastening	Component	Ø	Value(daNm)
1	-	RIGHT LAMBDA SENSOR	M18	(Right catalytic preconverter side) 4.1 ÷ 5.0

Place the power unit back in its housing using the hydraulic jack.1. Tighten the bolt fixing the gearbox side rigid power unit support to the flexible mounting to the specified torque.

	Fastening	Component	Ø	Value(daNm)
1	-	-	-	-

2. Remove the hydraulic jack from under the gearbox.

1. Connect the exhaust pipes between the preconverters and the catalytic converter, catalytic preconverter side, with the gaskets in place and tighten the nuts to the specified torque.

	Fastening	Component	Ø	Value(daNm)
1	Nut	LEFT PRECONVERTER.CONVERTER PIPE/	M8	(Catalytic converter side) 2.3 ÷ 2.8

Place the bracket joining the exhaust pipes between the preconverters and the catalytic converter back in its housing and secure it using the bolt.Proceed with refitting - 7055B54 under-engine guard - r r .Connect the electrical connection to the injection-ignition control unit.Connect the fuel vapour recovery pipe quick release fitting to the air chamber.Connect the vacuum intake pipe to the air chamber and tighten the band.Connect the electrical connection to the throttle body integrated with the D.V.L.Connect the electrical connection for the right Lambda sensor and fasten the electrical wiring using the bands.Close the electrical connections box cover.Place the corrugated hose, complete with resonator, back in its housing and tighten the bands.Connect the oil vapour recirculation pipe to the corrugated hose and tighten the band.Proceed with refitting - 1008C10 power unit upper reaction link r r .Connect the negative (-) battery terminal.Remove the car from the ramps.