ENGINE PERFORMANCE – Land Rover Discovery 3 SE 2007 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

4.0L

4.0L, Engine Performance Wiring Diagram (1 of 4) for Land Rover Discovery 3 SE 2007

List of elements for 4.0L, Engine Performance Wiring Diagram (1 of 4) for Land Rover Discovery 3 SE 2007:

• (not used)
• 5v ref 4
• Alt monitor
• C0570l
• C0634a
• Cam -
• Cam a+
• Camshaft position sensor (center front of engine)
• Coil 1b
• Coil 2a
• Coil 2b
• Coil 3a
• Coil 3b
• Crank +
• Crank -
• Crankshaft position sensor (lower rear of engine)
• Diff press
• Egr modulator valve
• Engine control module (ecm) (left side of engine compt)
• Engine control module relay
• Engine coolant temperature sensor (top of engine)
• Engine junction box (under engine compt fuse box)
• Fuse 10a
• Fuse 15a
• Fuse 20a
• Fuse 5a
• Gnd 4
• Hot at all times
• Knock 1a +
• Knock 1a -
• Knock 1b +
• Knock 1b -
• Knock sensor (top of engine)
• Maf gnd
• Nca
• Oil temp
• Red
• Sen gnd 5
• Sen gnd 6
• Sensor gnd 3
• Starting/ charging system
• Uhego a gnd
• Uhego a sig
• Uhego b gnd
• Uhego b sig

4.0L, Engine Performance Wiring Diagram (2 of 4) for Land Rover Discovery 3 SE 2007

List of elements for 4.0L, Engine Performance Wiring Diagram (2 of 4) for Land Rover Discovery 3 SE 2007:

• (front center of engine compt) viscous fan
• (right front of engine compt) mass air flow (maf) sensor
• 5v ref 3
• Afm iat
• C0570l
• C0634a alt control
• Coil 1a
• Coolant temp
• Cyl 1a injector
• Cyl 1b injector
• Cyl 2a injector
• Cyl 2b injector
• Cyl 3a injector
• Cyl 3b injector
• E red
• E-box fan
• Egr
• Electric throttle unit (center rear of engine)
• Engine control module (ecm) (left side of engine compt)
• Engine junction box (under engine compt fuse box)
• Fan request
• Fan speed
• Fuel pump
• Fuel pump relay
• Fuse 25a
• Hall effect sensor
• Hot at all times
• Igf 1
• Igf2
• Intake tuning valve
• Maf
• Map
• Mptor +
• Mptor -
• Purge valve
• Red
• Starting/ charging system
• Tps1
• Tps2
• Uhego a htr
• Uhego b htr

4.0L, Engine Performance Wiring Diagram (3 of 4) for Land Rover Discovery 3 SE 2007

List of elements for 4.0L, Engine Performance Wiring Diagram (3 of 4) for Land Rover Discovery 3 SE 2007:

• (top of engine)
• (top of engine) ignition coil 1
• (top of engine) ignition coil 3
• (top of engine) ignition coil 4
• (top of engine) ignition coil 5
• (top of engine) ignition coil 6
• (top right side of engine) ignition coil 2
• C2649
• C2649 (center front of engine)
• C2922 (base of left "d" pillar)
• Capacitor
• E-box cooling fan
• Fuel injector
• Fuel tank unit
• Instrument cluster system
• Manifold tuning valve (front center of engine)
• Pressure control valve
• Purge control valve (top center rear of engine)
• Red

4.0L, Engine Performance Wiring Diagram (4 of 4) for Land Rover Discovery 3 SE 2007

List of elements for 4.0L, Engine Performance Wiring Diagram (4 of 4) for Land Rover Discovery 3 SE 2007:

• (right lower front of engine) oil temperature sensor
• (under center of vehicle) leak detection pump
• 5v ref 1
• 5v ref 2
• Accelerator pedal position sensor (under left side of dash)
• Batt
• Brake boost pump
• Brake boost pump (left front of engine compt)
• Brake boost pump relay
• Brake sw
• C0557 (left front wheel arch liner)
• C0570l
• C0583l
• C0584l
• C0635l
• C2635
• C2650 (left front wheel arch liner)
• Can h in
• Can h out
• Can l in
• Can l out
• Central junction box
• Computer data lines system
• Cruise control system
• Cruise sw +
• Cruise sw -
• Dmtl heater
• Dmtl pump
• Dmtl valve
• Ecm power
• Engine control module (ecm) (left side of engine compt)
• Engine junction box (under engine compt fuse box)
• Exterior lights system
• Fuse 20a
• Fuse 5a
• Gnd
• Gnd 1
• Gnd 2
• Hego a htr
• Hego a sig
• Hego b htr
• Hego b sig
• Hot at all times
• Hot in run
• Hot in start
• Ign
• Ign start
• Left front heated oxygen sensor (under center of vehicle)
• Left rear heated oxygen sensor (under center of vehicle)
• Main relay
• P/n
• Pedal demand 1
• Pedal demand 2
• Power gnd 1
• Power gnd 2
• Power gnd 3
• Red
• Right front heated oxygen sensor (right of gearbox)
• Right rear heated oxygen sensor (under center of vehicle)
• Signal gnd
• Srs signal
• Start relay
• Starting/ charging system
• Throttle power

4.4L

4.4L, Engine Performance Wiring Diagram (1 of 5) for Land Rover Discovery 3 SE 2007

List of elements for 4.4L, Engine Performance Wiring Diagram (1 of 5) for Land Rover Discovery 3 SE 2007:

• (not used)
• 5v ref 4
• Alt monitor
• C0570l
• C0634b
• Cam a gnd
• Cam a+
• Cam b gnd
• Cam b+
• Camshaft position sensor a (right rear of engine)
• Camshaft position sensor b (right rear of engine)
• Coil 1b
• Coil 2a
• Coil 2b
• Coil 3a
• Coil 3b
• Coil 4a
• Coil 4b
• Crank +
• Crank -
• Crankshaft position sensor (left side of engine)
• Egr 1
• Egr 2
• Egr 4
• Egr modulator valve
• Engine control module (ecm) (left side of engine compt)
• Engine control module relay
• Engine coolant temperature sensor (top of engine)
• Engine junction box (under engine compt fuse box)
• Fuel temp
• Fuse 10a
• Fuse 15a
• Fuse 20a
• Fuse 5a
• Hot at all times
• Knock 1a +
• Knock 1a -
• Knock 1b +
• Knock 1b -
• Knock sensor (right front of engine)
• Left
• Maf gnd
• Nca
• Oil temp
• Red
• Right
• Sen gnd 5
• Sen gnd 6
• Sensor gnd 3
• Sensor gnd 4
• Starting/ charging system
• Uhego a gnd
• Uhego a sig
• Uhego b gnd
• Uhego b sig

4.4L, Engine Performance Wiring Diagram (2 of 5) for Land Rover Discovery 3 SE 2007

List of elements for 4.4L, Engine Performance Wiring Diagram (2 of 5) for Land Rover Discovery 3 SE 2007:

• (front center of engine compt) viscous fan
• (right front of engine compt) mass air flow (maf) sensor
• 5v ref 3
• Afm iat
• C0570l
• C0634b alt monitor
• Coil 1a
• Coolant temp
• E-box fan
• Electric throttle unit (center rear of engine)
• Engine control module (ecm) (left side of engine compt)
• Engine junction box (under engine compt fuse box)
• Fan request
• Fan speed
• Fuel pump
• Fuel pump relay
• Fuse 25a
• Hall effect sensor
• Hot at all times
• Igf 1
• Igf2
• Inj cyl 1a
• Inj cyl 1b
• Inj cyl 2a
• Inj cyl 2b
• Inj cyl 3a
• Inj cyl 3b
• Inj cyl 4a
• Inj cyl 4b
• Maf
• Map
• Purge valve
• Red
• Starting/ charging system
• Throttle +
• Throttle -
• Tps1
• Tps2
• Uhego a htr
• Uhego b htr
• Vvt a
• Vvt b

4.4L, Engine Performance Wiring Diagram (3 of 5) for Land Rover Discovery 3 SE 2007

List of elements for 4.4L, Engine Performance Wiring Diagram (3 of 5) for Land Rover Discovery 3 SE 2007:

• (left side of engine)
• (right side of engine)
• (top left side of engine)
• (top right side of engine)
• C2649
• C2651
• Capacitor
• Fuel injector
• Ignition coil 1
• Ignition coil 2
• Ignition coil 3
• Ignition coil 4
• Ignition coil 5
• Ignition coil 6
• Ignition coil 7
• Ignition coil 8
• Red

4.4L, Engine Performance Wiring Diagram (4 of 5) for Land Rover Discovery 3 SE 2007

List of elements for 4.4L, Engine Performance Wiring Diagram (4 of 5) for Land Rover Discovery 3 SE 2007:

• (at front of engine) oil temperature sensor
• (top of engine) manifold absolute pressure sensor
• C2922 (base of left "d" pillar)
• E-box cooling fan
• Fuel rail temperature sensor
• Fuel tank unit
• Instrument cluster system
• Left front heated oxygen sensor (under center of vehicle)
• Left rear heated oxygen sensor (under center of vehicle)
• Purge control valve (rear of engine)
• Red
• Right front heated oxygen sensor (right of gearbox)
• Right rear heated oxygen sensor (under center of vehicle)
• Variable valve timing oil valve 1
• Variable valve timing oil valve 2

4.4L, Engine Performance Wiring Diagram (5 of 5) for Land Rover Discovery 3 SE 2007

List of elements for 4.4L, Engine Performance Wiring Diagram (5 of 5) for Land Rover Discovery 3 SE 2007:

• (under center of vehicle) leak detection pump
• 5v ref 1
• 5v ref 2
• Accelerator pedal position sensor (under left side of dash)
• Batt
• Brake boost pump
• Brake boost pump (left front of engine compt)
• Brake boost pump relay
• Brake sw
• C0557 (left front wheel arch liner)
• C0570l
• C0583l
• C0584l
• C0635l
• C2635
• C2650 (left front wheel arch liner)
• Can h in
• Can h out
• Can l in
• Can l out
• Central junction box (right side of dash)
• Computer data lines system
• Crank
• Cruise control system
• Cruise sw +
• Cruise sw -
• Demand 1
• Demand 2
• Dmtl heater
• Dmtl pump
• Dmtl valve
• Ecm power
• Engine control module (ecm) (left side of engine compt)
• Engine junction box (under engine compt fuse box)
• Exterior lights system
• Fuse 20a
• Fuse 5a
• Gnd 1
• Gnd 2
• Hego a htr
• Hego a sig
• Hego b htr
• Hego b sig
• Hot at all times
• Hot in run
• Hot in start
• Ign
• Main relay
• P/n
• Power gnd 1
• Power gnd 2
• Power gnd 3
• Red
• Signal gnd
• Srs signal
• Start relay
• Starting/ charging system
• Throttle power