Leon Mk2
| Injection system components: removing and installing |
| 1 - | Plug |
| q | Check installing position |
| 2 - | 3 Nm |
| q | Check the note on installation → Chapter |
| 3 - | Air filter |
| q | Air filter: removing and installing → Fig. |
| q | Disassembly and assembly → Chapter |
| 4 - | Wiring guide |
| q | Clipped to the fuel distributor |
| 5 - | 10 Nm |
| 6 - | Fuel distributor with injectors |
| q | Disassembly and assembly → Chapter |
| 7 - | Intake manifold |
| q | Disassembly and assembly → Chapter |
| 8 - | From the activated charcoal filter solenoid valve -N80-*/** → Rep. Gr.20 |
| 9 - | Connector |
| q | Black, 6-contacts |
| q | To throttle valve control unit -J338- |
| q | Connector with gold contacts |
| 10 - | From the brake servo |
| 11 - | Gasket |
| q | Replace |
| 12 - | Connection line |
| q | To the exhaust recirculation system: → Rep. Gr.26 |
| 13 - | 5 Nm |
| 14 - | Engine revs sender -G28-* |
| q | Before removing, remove the intake manifold, → Item |
| q | Test → Chapter |
| q | Location → Chapter, component location synoptic chart |
| 15 - | Pre-catalyst lambda probe -G39-*, 50 Nm |
| q | Lubricate the thread only with -G5-. The -G5- should not get into the grooves of the probe |
| q | Remove and install with -U-40080- |
| q | Test the lambda control → Chapter |
| q | Voltage supply of the probe heating via the fuel pump relay -J17- |
| q | Test the pre-catalyst lambda probe heating → Chapter |
| q | Test the continuity of flow of the probe heating |
| q | Location → Chapter, component location synoptic chart |
| 16 - | 6-contacts connector |
| q | Black |
| q | To lambda probe and pre-catalyst lambda probe heating (post-catalyst lambda probe with 4-contacts connector) |
| q | Contacts 3 and 4 of the connector, gold |
| q | Location → Chapter, component location synoptic chart |
| 17 - | Thermostat housing |
| 18 - | Clip |
| q | Check for firm seating |
| 19 - | O-ring |
| q | Replace if worn |
| 20 - | Plug |
| q | Before removing, reduce the cooling system pressure |
| 21 - | Coolant temperature sender -G62-* |
| q | To engine control unit |
| q | With sender for coolant temperature gauge -G2- |
| q | Before removing, reduce the cooling system pressure |
| q | Resistance values between contacts 1 and 3 → Fig. |
| q | Test → Chapter |
| 22 - | Connector |
| q | Black, 4-contacts |
| q | To coolant temperature sender -G62- and sender for coolant temperature gauge -G2- |
| 23 - | Mounting frame |
| 24 - | Connectors |
| q | Connect and disconnect the connectors with the ignition off |
| 25 - | Engine control unit |
| q | (Control unit for injection system 4LV -J357-) |
| q | Test the voltage supply → Chapter |
| q | In the event of replacement carry out the basic settings → Chapter |
| q | In the event of replacement, the control unit must be adapted to the electronic immobiliser → Anchor |
| q | Encode engine control unit → Chapter |
| q | Replace → Chapter |
| q | Location → Chapter, component location synoptic chart |
| 26 - | Hot air intake hose |
| q | From the hot air intake flap: → Rep. Gr.26 |
| 27 - | Connecting sleeve for cold air intake |
| q | Also clipped to the body |
| 28 - | Ring gasket |
| q | Replace |
| 29 - | 20 Nm |
| 30 - | Vacuum hose |
| 31 - | Supply hose |
| q | Black, with white mark |
| q | Immobilise with strip clamps |
| q | Check for firm seating |
| q | From the fuel filter: → Rep. Gr.20 |
| 32 - | Return hose |
| q | Black, with blue mark |
| q | Immobilise with strip clamps |
| q | Check for firm seating |
| q | To the fuel transport unit in the tank → Rep. Gr.20 |
| 33 - | Connector |
| q | Black, bipolar |
| q | To injector -N30-...-N33-) |
| 34 - | Connector |
| q | Black, bipolar |
| q | To knock sensor 1 -G61- |
| q | Connector with gold contacts |
| q | Location → Chapter, engine compartment synoptic chart |
| 35 - | Connector |
| q | Black, 4-contacts |
| q | To intake manifold pressure sender and intake air temperature sender |
| q | Connector with gold contacts |
| q | Location → Chapter, engine compartment synoptic chart |
| 36 - | 5 Nm |
| 37 - | Breather hose of the engine oil sump |
| q | From the oil separator → Rep. Gr.17 |
