ENGINE PERFORMANCE – Ford Expedition 1999 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

4.6L

4.6L, Engine Performance Wiring Diagrams (1 of 4) for Ford Expedition 1999

List of elements for 4.6L, Engine Performance Wiring Diagrams (1 of 4) for Ford Expedition 1999:

• (engine control sensor harn, near breakout to 40-pin connector, left rear left rear corner of eng compt)
• (fuel charge harn, near breakout to 42-pin conn in right rear of engine compt)
• (fuel charge harn, near breakout to radio noise cap 1) s118
• (fuel charge harn, near breakout to radio noise cap 2) s119
• (left front radiator support) g108
• (main harn, near breakout to central junction box)
• (right rear of engine compt) g123
• 4x4 low ind sw
• 820 ohms
• Accel sig
• Accs
• Air conditioning system
• Battery junction box (left side of engine compt)
• Body computer system
• C243
• Case gnd
• Central junction box (under left side of dash)
• Ckp(+)
• Ckp(-)
• Data link (+)
• Data link (-)
• Data link connector (partial) (under left side of dash)
• Digital transmission range sensor (dtr sensor) (left side of transmission)
• Dlc
• Electronic suspension system
• Evr ctrl
• Fuel pump mon
• Fuse 30a
• Fuse 5a
• Hot at all times
• Hot in run or start
• Iat
• Ign coil 1
• Ign coil 2
• Ignition coils 1 & 2
• Ignition coils 3 & 4
• Instrument cluster system
• Intake manifold
• Intake manifold tunning valve (top front of engine)
• Ks sensor
• Maf
• Nca
• O/d off
• Pcm data out
• Pcm power diode
• Pcm power relay
• Powertrain control module (pcm) (right side of engine compt)
• Pwr gnd
• R n
• Radio noise capacitor 1 (in right front of engine compt)
• Radio noise capacitor 2 (in left front of engine compt)
• Rr ho2s sig (12)
• S100
• S106
• S116
• S117
• S2002
• S2007
• S2008
• S225
• Shift sol a
• Shift sol b
• Spark plugs
• Tcs
• Tft
• To dtr sensor (diagram 4 of 4)
• Tp out
• Tr1
• Tr2
• Tr4
• Transmission control indicator lamp
• Transmission control switch (a/t)

4.6L, Engine Performance Wiring Diagrams (2 of 4) for Ford Expedition 1999

List of elements for 4.6L, Engine Performance Wiring Diagrams (2 of 4) for Ford Expedition 1999:

• (eng control sens harn, near breakout to starter mtr relay) s137
• (engine control sensor harn, near breakout to 38-pin conn in right rear of engine compt)
• (engine control sensor harn, near breakout to 40-pin conn in left rear of engine compt)
• (engine control sensor harn, near breakout to windshield wiper motor)
• (under left side of dash) central junction box
• Battery junction box (left side of engine compt)
• Breakout to 40-pin conn, left rear of engine compt) s160
• C238
• C267
• Crankshaft position (ckp) sensor (lower front of engine)
• Crankshaft position sensor shield
• Differential pressure feedback egr (dpfe) sensor (left side of engine)
• Electronic suspension system
• Fuel pump relay
• Fuel reset switch indicator
• Fuel tank pressure sensor (in fuel tank)
• Fuse 15a
• Fuse 20a
• G123 (rear of engine compt)
• Generic electronic module/ central timer module
• Hot at all times
• Instrument cluster
• Intake air temperature (iat) sensor (on intake manifold)
• Nca
• Power distribution box (left side of engine compt)
• Red
• Red/pnk
• S101
• S127
• S135 (fuel charge harn, near breakout to ho2s 21)
• S136 (fuel charge harn, near breakout to knock sensor)
• S138
• S139
• Throttle position (tp) sensor (on throttle body)
• Vss input

4.6L, Engine Performance Wiring Diagrams (3 of 4) for Ford Expedition 1999

List of elements for 4.6L, Engine Performance Wiring Diagrams (3 of 4) for Ford Expedition 1999:

• (backup lamp sw to rear lamp feed harn, at breakout to 38-pin conn in right rear of engine compt)
• (engine control
• (fuel charge harn, near breakout to ignition coil 3)
• (fuel charge harn, near breakout to knock sensor)
• (fuel tank) fuel pump module
• (under right side of dash) inertia fuel shut-off switch
• 4r70w transmission
• Central junction box (under left side of dash)
• Egr vacuum regulator solenoid (left side of engine)
• Electronic pressure control solenoid
• Eng compt)
• Evap canister purge
• Fuel injectors
• Fuse 5a
• G108 (left front radiator support)
• Hot at all times
• Idle air control valve (on left side of intake manifold)
• Instrument cluster system
• Nca
• Near breakout to 40-pin conn, left
• Output shaft speed (oss) sensor (left side of transmission)
• Rear corner of
• Rear lamp feed harn, in breakout to 38-pin conn in right rear engine compt)
• Red
• Red/pnk
• S129
• S131 (fuel charge harn, near breakout to ign coil 7)
• S140
• S198
• S400
• Sensor harn,
• Shift solenoids
• Ssa
• Ssb
• Tan
• Tan/ red
• Tan/red
• Torque converter clutch solenoid
• Transmission fluid temperature sensor
• Valve (left rear corner of engine compt)

4.6L, Engine Performance Wiring Diagrams (4 of 4) for Ford Expedition 1999

List of elements for 4.6L, Engine Performance Wiring Diagrams (4 of 4) for Ford Expedition 1999:

• (engine cntrl sens harn, near breakout to 40-pin conn, left rear of eng compt)
• (engine ctrl sensor harn, near breakout to windsheild wiper motor) s143
• (in left side of engine compt) speed control servo
• (near fuel tank) canister vent solenoid
• (not used)
• (on left side of engine compartment)
• (right side of engine) knock sensor (ks)
• (top front of engine) cylinder head temperature (cht) sensor
• 5v ref volt
• Battery junction box
• Bpp sw
• Brake pedal position (bpp) switch
• C243
• Cam pos in
• Camshaft position (cmp) sensor (on front of engine)
• Camshaft position sensor shield
• Canister vent
• Central junction box (under left side of dash)
• Cyl head temp
• Digital transmission range sensor (dtr sensor) (left side of transmission)
• Dpfe sens
• Epc sol
• From dtr sensor (diagram 1 of 4)
• Fuel inj 1
• Fuel inj 2
• Fuel inj 3
• Fuel inj 4
• Fuel inj 5
• Fuel inj 6
• Fuel inj 7
• Fuel inj 8
• Fuel pump ctrl
• Fuel tank press
• Fuse 5a
• G123 (right rear of engine compt)
• G123 (right rear of engine compt)
• G200 (left kick panel)
• Heated oxygen sensor (ho2s) 11 (on engine exhaust pipe)
• Heated oxygen sensor (ho2s) 12 (on engine exhaust pipe)
• Heated oxygen sensor (ho2s) 21 (on engine exhaust pipe)
• Heated oxygen sensor (ho2s) 22 (on engine exhaust pipe)
• Heater ctrl
• Hot at all times
• Iac sol
• Ign coil 3
• Ign coil 4
• Kap b(+)
• Knock sensor
• Lf ho2s
• Lf ho2s sig (21)
• Lr ho2s
• Lr ho2s sig (22)
• Maf sens in
• Mass air flow (maf) sensor (in air cleaner assembly)
• Nca
• Not used
• Oss (+)
• Pnk
• Powertrain control module (pcm) (right side of engine compt)
• Pwr gnd
• Red
• Red/pnk
• Ref voltage
• Rf ho2s
• Rf ho2s sig (11)
• Rr ho2s
• S100
• S101
• S130
• S208
• Tan
• Tan/red
• Tcc sol
• Tp sens in
• Tr3a
• Trans ctrl ind
• Vapor valve
• Vpwr
• Vss (+)
• Vss input
• Wot relay

5.4L

5.4L, Engine Performance Wiring Diagrams (1 of 4) for Ford Expedition 1999

List of elements for 5.4L, Engine Performance Wiring Diagrams (1 of 4) for Ford Expedition 1999:

• (engine control sensor harn, near breakout to 40-pin connector, left rear left rear corner of eng compt)
• (left front radiator support) g108
• (main harn, near breakout to central junction box)
• (right rear of engine compt) g123
• 4x4 low ind sw
• 820 ohms
• Accel sig
• Accs
• Air conditioning system
• Battery junction box (left side of engine compt)
• Body computer system
• C243
• Case gnd
• Ccs
• Central junction box (under left side of dash)
• Ckp(+)
• Ckp(-)
• Data link (+)
• Data link (-)
• Data link connector (partial) (under left side of dash)
• Digital transmission range sensor (dtr sensor) (left side of transmission)
• Dlc
• Electronic suspension system
• Evr ctrl
• Fuel pump mon
• Fuse 30a
• Fuse 5a
• Hot at all times
• Hot in run or start
• Iat
• Ign coil 1
• Ign coil 3
• Ign coil 5
• Ign coil 6
• Instrument cluster system
• Intake manifold
• Intake manifold tunning valve (top front of engine)
• Ks sensor
• Maf
• Nca
• O/d off
• Pcm data out
• Pcm power diode
• Pcm power relay
• Powertrain control module (pcm) (right side of engine compt)
• Pwr gnd
• R n
• Radio noise capacitor (on top right side of engine)
• Radio noise capacitor 2 (on top left side of engine)
• Rr ho2s sig (12)
• S100
• S106
• S116
• S117 (fuel charge harn, near breakout to 42-pin conn in right rear of engine compt)
• S161
• S2002
• S2007
• S2008
• S225
• Shift sol 1
• Shift sol 2
• Tcil
• Tcs
• Tft
• To dtr sensor (diagram 4 of 4)
• Tp out
• Tr1
• Tr2
• Tr4
• Transmission control indicator lamp
• Transmission control switch (a/t)

5.4L, Engine Performance Wiring Diagrams (2 of 4) for Ford Expedition 1999

List of elements for 5.4L, Engine Performance Wiring Diagrams (2 of 4) for Ford Expedition 1999:

• (eng control sens harn, near breakout to starter mtr relay) s137
• (engine control sensor harn, near breakout to 38-pin conn in right rear of engine compt)
• (engine control sensor harn, near breakout to 40-pin conn in left rear of engine compt)
• (engine control sensor harn, near breakout to windshield wiper motor)
• (under left side of dash) central junction box
• Battery junction box (left side of engine compt)
• C238
• C243
• C267
• Crankshaft position (ckp) sensor (lower front of engine)
• Crankshaft position sensor shield
• Differential pressure feedback egr (dpfe) sensor (left side of engine)
• Electronic suspension system
• Fuel pump relay
• Fuel reset switch indicator
• Fuel tank pressure sensor (in fuel tank)
• Fuse 15a
• Fuse 20a
• G123 (rear of engine compt)
• Generic electronic module/ central timer module
• Hot at all times
• Instrument cluster
• Intake air temperature (iat) sensor (on intake manifold)
• Nca
• Power distribution box (left side of engine compt)
• Red
• Red/pnk
• S101
• S127
• S135 (fuel charge harn, near breakout to ho2s 21)
• S136 (fuel charge harn, near breakout to knock sensor)
• S138
• S139
• Throttle position (tp) sensor (on throttle body)
• Vss input

5.4L, Engine Performance Wiring Diagrams (3 of 4) for Ford Expedition 1999

List of elements for 5.4L, Engine Performance Wiring Diagrams (3 of 4) for Ford Expedition 1999:

• (backup lamp sw to rear lamp feed harn, at breakout to 38-pin conn in right rear of engine compt)
• (engine control
• (fuel charge harn, near breakout to ignition coil 3)
• (fuel charge harn, near breakout to knock sensor)
• (fuel tank) fuel pump module
• (under right side of dash) inertia fuel shut-off switch
• 4r100 transmission
• Central junction box (under left side of dash)
• Coast clutch solenoid
• Egr vacuum regulator solenoid (left side of engine)
• Electronic pressure control solenoid
• Eng compt)
• Evap canister purge
• Fuel injectors
• Fuse 5a
• G108 (left front radiator support)
• Hot at all times
• Idle air control (iac) valve (on left side of intake manifold)
• Instrument cluster system
• Nca
• Near breakout to 40-pin conn, left
• Output shaft speed (oss) sensor (left side of transmission)
• Rear corner of
• Red
• Red/pnk
• S129
• S131 (fuel charge harn, near breakout to ign coil 7)
• S140
• S141 (backup lamp sw to rear lamp feed harn, in breakout to 38-pin conn in right rear engine compt)
• S178
• S198
• S400
• Sensor harn,
• Shift solenoid
• Tan
• Tan/ red
• Tan/red
• Torque converter clutch solenoid
• Transmission fluid temperature sensor
• Valve (left rear corner of engine compt)

5.4L, Engine Performance Wiring Diagrams (4 of 4) for Ford Expedition 1999

List of elements for 5.4L, Engine Performance Wiring Diagrams (4 of 4) for Ford Expedition 1999:

• (engine cntrl sens harn, near breakout to 40-pin conn, left rear of eng compt)
• (engine ctrl sensor harn, near breakout to windsheild wiper motor)
• (front of left head) cylinder head temperature (cht) sensor
• (in left side of engine compt) speed control servo
• (near fuel tank) canister vent solenoid
• (on left side of engine compartment)
• (on left side of transmission) turbine shaft speed (tss) sensor
• (right side of engine) knock sensor (ks)
• 5.4l 2v only
• 5v ref volt
• Battery junction box
• Bpp sw
• Brake pedal position (bpp) switch
• C243
• Cam pos in
• Camshaft position (cmp) sensor (on front of engine)
• Camshaft position sensor shield
• Canister vent
• Central junction box (under left side of dash)
• Cyl head temp
• Digital transmission range sensor (dtr sensor) (left side of transmission)
• Dpfe sens
• Epc sol
• From dtr sensor (diagram 1 of 4)
• Fuel inj 1
• Fuel inj 2
• Fuel inj 3
• Fuel inj 4
• Fuel inj 5
• Fuel inj 6
• Fuel inj 7
• Fuel inj 8
• Fuel pump ctrl
• Fuel tank press
• Fuse 5a
• G123 (right rear of engine compt)
• G123 (right rear of engine compt)
• G200 (left kick panel)
• Heated oxygen sensor (ho2s) 11 (on engine exhaust pipe)
• Heated oxygen sensor (ho2s) 12 (on engine exhaust pipe)
• Heated oxygen sensor (ho2s) 21 (on engine exhaust pipe)
• Heated oxygen sensor (ho2s) 22 (on engine exhaust pipe)
• Heater ctrl
• Hot at all times
• Iac sol
• Ign coil 2
• Ign coil 4
• Ign coil 7
• Ign coil 8
• Kap b(+)
• Knock sensor
• Lf ho2s
• Lf ho2s sig (21)
• Lr ho2s
• Lr ho2s sig (22)
• Maf sens in
• Mass air flow (maf) sensor (in air cleaner assembly)
• Nca
• Oss (+)
• Powertrain control module (pcm) (right side of engine compt)
• Pwr gnd
• Red
• Red/pnk
• Rf ho2s
• Rf ho2s sig (11)
• Rr ho2s
• S100
• S101
• S130
• S143
• S208
• Sig rtn
• Tan
• Tan/red
• Tcc sol
• Tp sens in
• Tr3a
• Tss
• Vapor valve
• Vpwr
• Vss (+)
• Vss input
• Wot relay