Fuel Injection System Components, Removing And Installing
Fuel Injection System Components, Removing And Installing
1 - Air cleaner
2 - 20 Nm
3 - Mass Air Flow (MAF) sensor (G70)*
4 - Seal
- replace if damaged
5 - Connection hose
6 - Engine Control Module (ECM)*
- Installation location: in protective housing, radiator tank on left
7 - Mounting bracket
8 - Connector, 28-pin
- Before pulling off or pushing on connector, switch off ignition
- disengage to pull off
9 - Connector, 52-pin
- Before pulling off or pushing on connector, switch off ignition
- disengage to pull off
10 - intake air scoop
11 - Connector
- black, 2-pin
- for Intake Air Temperature (IAT) sensor (G42)
12 - 10 Nm
13 - To crankcase breather valve
14 - 4-pin harness connector
- brown
- for Oxygen Sensor (O2S) 2 behind Three Way Catalytic Converter (TWC) (G131) and heater for oxygen sensor (Z30), cylinder bank 2
15 - Oxygen Sensor (025)2, bank 2 behind Three Way Catalytic Converter (TWC) (G131)*, 50 Nm
- Installation location: in catalytic converter, left rear side
- Only use "G 052 112 A3" to grease thread; do not let "G 052 112 A3" get onto slit of oxygen sensor
- use 3337 to remove and install
- voltage is supplied to oxygen sensor heater through Fuel Pump (FP) relay (J17)
16 - Connector
- black, 2-pin
- for fuel injector (N30 - N33, N83, N84)
17 - 4-pin harness connector
- black
- for Heated Oxygen Sensor (HO2S) 1 (G108) and oxygen sensor heater (Z28), cylinder bank 2
18 - Heated Oxygen Sensor (HO2S) 1 bank 2 before catalytic converter (G108)*, 50 Nm
- Installation location: in exhaust pipe front left side
- Only use "G 052 112 A3" to grease thread; do not let "G 052 112 A3" get onto slit of oxygen sensor
- use 3337 to remove and install
- voltage is supplied to oxygen sensor heater through Fuel Pump (FP) relay (J17)
19 - To vacuum reservoir
20 - Engine speed sensor (G28)*
- in transmission housing above flywheel ring gear
21 - 3-way connector
- gray
- for engine speed (RPM) sensor
22 - O-ring
- replace if damaged
23 - Spacer
24 - Gasket
- replace if damaged
25 - Intake Manifold
26 - Oxygen Sensor (O2S) 2, bank 1 behind Three Way Catalytic Converter (TWC) (G130)*, 50 Nm
- Installation location: in catalytic converter, left right side
- Only use "G 052 112 A3" to grease thread; do not let "G 052 112 A3" get onto slit of oxygen sensor
- use 3337 to remove and install
- voltage is supplied to oxygen sensor heater through Fuel Pump (FP) relay (J17)
27 - Heated Oxygen Sensor (HO2S) 1, bank 1 before catalytic converter (G39)*, 50 Nm
- Installation location: in exhaust pipe in front
- Only use "G5" to grease thread; do not let "G5" get onto slit of oxygen sensor body
- voltage is supplied to oxygen sensor heater through Fuel Pump (FP) relay (J17)
28 - 4-pin harness connector
- black
- for Heated Oxygen Sensor (HO2S) 1 before Three Way Catalytic Converter (TWC) (G39) and oxygen sensor heater (Z19) cylinder bank 1
29 - 4-pin harness connector
- green
- for Oxygen Sensor (O2S) 2 behind Three Way Catalytic Converter (TWC) (G130) and oxygen sensor heater (Z29), cylinder bank 1
30 - Fuel rail with fuel injectors
31 - Supply line
- black
- from fuel filter
32 - Return line
- blue
- secure with spring type clamps
- Check for secure fitting
- on fuel delivery unit in fuel tank
33 - Engine Coolant Temperature (ECT) sensor (G62)*
- blue
- for Engine Control Module (ECM)
- with sensor for Engine Coolant Temperature (ECT) gauge (G2)
- before removing, release pressure from cooling system if necessary
34 - Connector
- blue, 4-pin
- for Engine Coolant Temperature (ECT) sensor (G62)
35 - Retaining clip
- Check it is secure
36 - Connector
- green, 2-pin
- for Secondary Air Injection (AIR) solenoid valve (N112)
37 - Connector
- blue, 2-pin
- for intake manifold change-over valve (N156)