ENGINE PERFORMANCE – Ford Thunderbird LX 1994 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

3.8L

3.8L SC, Engine Performance Wiring Diagrams (1 of 5) for Ford Thunderbird LX 1994

List of elements for 3.8L SC, Engine Performance Wiring Diagrams (1 of 5) for Ford Thunderbird LX 1994:

• (behind i/p, right of steering column)
• (left
• (on throttle body)
• 15a
• Accs
• Acp
• Air conditioning system (a/c hight pressure cutout/fan sw)
• Arc
• Baro
• Boo
• C232
• C236
• C237
• C238
• C240
• C250
• C251
• Camshaft position (cmp) sensor (top front of engine)
• Canp
• Cid
• Cluster fuse
• Cooling fans system
• Cse gnd
• Data +
• Data -
• Ect
• Egr vacuum regulator (evr) solenoid (right side of safety wall)
• Electronic suspension system
• Epc
• Evr
• Fpm
• Fuel pump/fuel gauge sender (top of fuel tank)
• G203 (behind right cowl panel)
• G203 (right cowl panel)
• G205
• Hfc
• Ho2s-l
• Hos2-r
• Hot in run or start
• Iac
• Iat
• Idle air control (iac) valve
• Idm
• Ign gnd
• Inertia fuel shutoff sw (left side of trunk)
• Inj 1
• Inj 2
• Inj 3
• Inj 4
• Inj 5
• Inj 6
• Injectors
• Instrument cluster
• Kapwr
• Lfc
• Maf
• Maf rtn
• Malfunction indicator lamp
• Mlp
• Oct adj
• Park/turn signal lamps
• Pfc
• Pfe
• Pip
• Pnk
• Powertrain control module (pcm) (right cowl panel)
• Pressure feedback egr (pfe) sensor (right rear of engine)
• Primary junction block
• Pwr gnd
• Red
• Secondary junction block
• Sig rtn
• Spout
• Ss1
• Ss2 tcc
• Sti data link conn side of engine compartment)
• Sto/mil
• Tachometer
• Tan
• Tcil
• Tcs
• Tfi
• Tp sti
• Tss
• Vehicle speed sensor (rear of transmission)
• Vpwr
• Vref
• Vss +
• Vss -
• Wac

3.8L SC, Engine Performance Wiring Diagrams (2 of 5) for Ford Thunderbird LX 1994

List of elements for 3.8L SC, Engine Performance Wiring Diagrams (2 of 5) for Ford Thunderbird LX 1994:

• 15a
• 20a
• Barometric absolute pressure (bap) (on right side of safety wall)
• C232
• Canister purge (canp) solenoid (behind right headlight)
• Data link connector (right side of engine compartment)
• Engine coolant temp (ect) sensor (top front of engine)
• Fuse 15
• G108 (left radiator support)
• Heated oxygen sensor #1 (right exhaust manifold)
• Heated oxygen sensor #2 (left exhaust manifold)
• Ho2s fuse
• Hot at all times
• Hot in run
• Intake air temperature (iat) sensor (top left rear of engine)
• Knock sensor (ks) (right side of engine, below exhaust manifold)
• Mass airflow (maf) sensor (in air intake assembly)
• Nca
• Octane adjust plug (calif only) (right side of engine compartment)
• Pnk
• Power distribution box
• Primary junction block
• Red
• Throttle position (tp) sensor (on throttle body)

3.8L SC, Engine Performance Wiring Diagrams (3 of 5) for Ford Thunderbird LX 1994

List of elements for 3.8L SC, Engine Performance Wiring Diagrams (3 of 5) for Ford Thunderbird LX 1994:

• 15a
• 4r70w transmission
• A/t
• C232
• C233
• C250
• C298
• Cluster fuse
• Clutch pedal position (cpp) switch (top of clutch pedal support)
• Electronic pressure control (epc) solenoid
• Hot in run
• Hot in run or start
• Instrument cluster
• M/t
• Manual lever position (mlp) sensor (left rear of transmission)
• Output shaft speed sensor (left side of transmission)
• Park/neutral position switch (left rear of transmission)
• Pnk
• Primary junction block
• Red
• Run fuse
• Secondary junction block
• Shift solenoid (ss)
• Torque converter clutch (tcc) solenoid
• Transmission control indicator
• Transmission control switch (tcs) (below front of console)
• Transmission oil temper- ature (tot) sensor

3.8L SC, Engine Performance Wiring Diagrams (4 of 5) for Ford Thunderbird LX 1994

List of elements for 3.8L SC, Engine Performance Wiring Diagrams (4 of 5) for Ford Thunderbird LX 1994:

• (right side of
• 20a
• Ckp +
• Ckp -
• Ckp shield
• Crankshaft position sensor (lower right front of engine)
• Fuse 3
• G109 (right radiator support)
• Gnd
• Hot in run or start
• Idm
• Ign gnd
• Ign pwr
• Ignition coil
• Ignition control module (icm) engine compartment)
• Nca
• Pip
• Pnk
• Power distribution block
• Radio noise capacitor (near ignition coil)
• Red
• Spark plugs
• Spout
• Spout check connector (right side of engine compartment)

3.8L SC, Engine Performance Wiring Diagrams (5 of 5) for Ford Thunderbird LX 1994

List of elements for 3.8L SC, Engine Performance Wiring Diagrams (5 of 5) for Ford Thunderbird LX 1994:

• 20a
• A/c clutch controller
• A/c comp- ressor clutch
• A/c high pressure cutout/fan switch
• Edf relay
• Edf relay controller
• Engine cooling fan motor
• Fuel pump relay
• Fuse 13
• Fuse 15
• G109 (right radiator support)
• Hedf 1 relay
• Hedf 2 relay
• Hot at all times
• Integrated relay control module (ircm) (right front of engine compartment, mounted on upper radiator support)
• Power distribution block
• Red
• Solid state

3.8L, Engine Performance Wiring Diagrams (1 of 5) for Ford Thunderbird LX 1994

List of elements for 3.8L, Engine Performance Wiring Diagrams (1 of 5) for Ford Thunderbird LX 1994:

• (behind i/p, right of steering column)
• (ei) (di)
• (left
• (on throttle body)
• 15a
• Accs
• Acp
• Air conditioning system (a/c hight pressure cutout/fan sw)
• Boo
• C232
• C236
• C237
• C238
• C240
• C250
• C251
• Camshaft position (cmp) sensor (top front of engine)
• Canp
• Cid
• Cluster fuse
• Cse gnd
• Data +
• Data -
• Ect
• Egr vacuum regulator (evr) solenoid (right side of safety wall)
• Epc
• Evr
• Fpm
• Fuel pump/fuel gauge sender (top of fuel tank)
• G203 (behind right cowl panel)
• G203 (right cowl panel)
• G205
• Hfc
• Ho2s-l
• Hos2-r
• Hot in run or start
• Iac
• Iat
• Idle air control (iac) valve
• Idm
• Ign gnd
• Inertia fuel shutoff sw (left side of trunk)
• Inj 1
• Inj 2
• Inj 3
• Inj 4
• Inj 5
• Inj 6
• Injectors
• Instrument cluster
• Kapwr
• Lfc
• Maf
• Maf rtn
• Malfunction indicator lamp
• Mlp
• Nca
• Oct. adj.
• Park/turn signal lamps
• Pfe
• Pip
• Pnk
• Powertrain control module (pcm) (right cowl panel)
• Pressure feedback egr (pfe) sensor (right rear of engine)
• Primary junction block
• Pwr gnd
• Red
• Secondary junction block
• Sig rtn
• Spout
• Ss1
• Ss2 tcc
• Sti data link conn side of engine compartment)
• Sto/mil
• Tachometer
• Tan
• Tcil
• Tcs
• Tfi
• Tp sti
• Tss
• Vehicle speed sensor (rear of transmission)
• Vpwr
• Vref
• Vss +
• Vss -
• Wac

3.8L, Engine Performance Wiring Diagrams (2 of 5) for Ford Thunderbird LX 1994

List of elements for 3.8L, Engine Performance Wiring Diagrams (2 of 5) for Ford Thunderbird LX 1994:

• (ei) (di)
• 15a
• 20a
• C232
• Canister purge (canp) solenoid (behind right headlight)
• Data link connector (right side of engine compartment)
• Engine coolant temp (ect) sensor (top front of engine)
• Fuse 15
• G108 (left radiator support)
• Heated oxygen sensor #1 (right exhaust manifold)
• Heated oxygen sensor #2 (left exhaust manifold)
• Ho2s fuse
• Hot at all times
• Hot in run
• Intake air temperature (iat) sensor (top left rear of engine)
• Mass airflow (maf) sensor (in air intake assembly)
• Nca
• Octane adjust plug (calif only) (right side of engine compartment)
• Pnk
• Power distribution box
• Primary junction block
• Red
• Throttle position (tp) sensor (on throttle body)

3.8L, Engine Performance Wiring Diagrams (3 of 5) for Ford Thunderbird LX 1994

List of elements for 3.8L, Engine Performance Wiring Diagrams (3 of 5) for Ford Thunderbird LX 1994:

• (ei) (di)
• 15a
• 4r70w transmission
• A/t
• C232
• C233
• C250
• C298
• Cluster fuse
• Clutch pedal position (cpp) switch (top of clutch pedal support)
• Electronic pressure control (epc) solenoid
• Hot in run
• Hot in run or start
• Instrument cluster
• M/t
• Manual lever position (mlp) sensor (left rear of transmission)
• Nca
• Output shaft speed sensor (left side of transmission)
• Park/neutral position switch (left rear of transmission)
• Pnk
• Primary junction block
• Red
• Run fuse
• Secondary junction block
• Shift solenoid (ss)
• Torque converter clutch (tcc) solenoid
• Transmission control indicator
• Transmission control switch (tcs) (below front of console)
• Transmission oil temper- ature (tot) sensor

3.8L, Engine Performance Wiring Diagrams (4 of 5) for Ford Thunderbird LX 1994

List of elements for 3.8L, Engine Performance Wiring Diagrams (4 of 5) for Ford Thunderbird LX 1994:

• (ei) (di)
• (right side of
• * **
• 20a
• Ckp +
• Ckp -
• Ckp shield
• Coil +
• Coil -
• Crankshaft position sensor (lower right front of engine)
• Distributor hall effect sensor
• Distributor ignition (di)
• Electornic ignition (ei)
• Fuse 3
• G108 (left radiator support)
• Gnd
• Hot in run or start
• Idm
• Ign gnd
• Ign pwr
• Ignition coil
• Ignition control module (icm) engine compartment)
• Ignition control module (icm) engine compartment)
• In-line resistor (in engine control sensor harness)
• Nca
• Pip
• Pnk
• Power distribution block
• Radio noise capacitor (near ignition coil)
• Red
• Spark plugs
• Spout
• Spout check connector (right side of engine compartment)
• Spout check connector (right side of engine compartment)

3.8L, Engine Performance Wiring Diagrams (5 of 5) for Ford Thunderbird LX 1994

List of elements for 3.8L, Engine Performance Wiring Diagrams (5 of 5) for Ford Thunderbird LX 1994:

• 20a
• 60a
• A/c clutch controller
• A/c comp- ressor clutch
• A/c high pressure cutout/fan switch
• Edf relay
• Edf relay controller
• Eec power relay
• Engine cooling fan motor
• Fuel pump relay
• Fuse 13
• Fuse 15
• Fuse 5
• G109 (right radiator support)
• Hedf relay
• Hot at all times
• Integrated relay control module (ircm) (right front of engine compartment, mounted on upper radiator support)
• Power distribution block
• Red
• Solid state

4.6L

4.6L, Engine Performance Wiring Diagrams (1 of 5) for Ford Thunderbird LX 1994

List of elements for 4.6L, Engine Performance Wiring Diagrams (1 of 5) for Ford Thunderbird LX 1994:

• (behind right cowl panel)
• (right side of engine
• 10a
• 3 fl fuse 20a
• Bus+
• Bus-
• C250
• C251
• Ckp+
• Ckp-
• Cluster fuse 5a
• Coil 1
• Coil 2
• Coil 3
• Coil 4
• Compartment)
• Control
• Crankshaft position (ckp) sensor (lower right rear of engine)
• Cse grd
• Data link connector
• Fanm
• Fe prom
• G108 (left radiator support)
• G203 (behind right cowl panel)
• G205 (behind i/p, near right side of steering column)
• Gnd
• Hfc
• Hot at all times
• Hot in run or start
• Idm
• Ign gnd
• Ign grd
• Ignition
• Ignition coil
• In-line fuse (in engine control harness, near intergrated relay control module)
• Instrument cluster
• Left
• Left radio noise capacitor (left front of engine)
• Malfunction indicator lamp
• Mil
• Module (right side of engine
• Obd ii fuse 10a
• Oct adj
• Octane adjust plug (right side of engine compartment, taped to harness)
• Pip
• Plugs
• Pnk
• Power distribution box
• Powertrain control module
• Primary junction block
• Pwr
• Pwr grd
• Red
• Right
• Right radio noise capacitor (right front of engine)
• Spark
• Spout
• Spout check connector (right side of engine compartment, taped to harness)
• Ss1
• Ss2
• Tachometer
• Tcs
• Transmission control indicator
• Vss (-)

4.6L, Engine Performance Wiring Diagrams (2 of 5) for Ford Thunderbird LX 1994

List of elements for 4.6L, Engine Performance Wiring Diagrams (2 of 5) for Ford Thunderbird LX 1994:

• (behind right cowl panel)
• (left side of trunk)
• (on throttle
• (top front of engine)
• (top of fuel tank)
• (tp) sensor
• Accs
• Assembly)
• Body)
• Camshaft position sensor
• Ect
• Egr pfe sensor (right rear of
• Engine coolant temperature (ect) sensor (top right rear of engine)
• Engine)
• Evr
• Fpm
• Fuel pump/ fuel gauge sender
• G108 (left front radiator support)
• G203 (behind right cowl panel)
• G205 (behind i/p, near right side of steering column)
• H02s-12
• Ho2s-11
• Ho2s-22
• Iat
• Idm
• Inertia fuel shutoff switch
• Intake air temperature (iat) sensor (in air filter assembly)
• Kapwr
• Maf rtn
• Mass airflow (maf) sensor (in air intake
• Pip
• Pnk
• Powertrain control module
• Pressure feedback
• Pwr grd
• Red
• Secondary junction block
• Spout
• Tft
• Throttle position
• Vehicle speed sensor (rear of transmission)
• Vss (+)

4.6L, Engine Performance Wiring Diagrams (3 of 5) for Ford Thunderbird LX 1994

List of elements for 4.6L, Engine Performance Wiring Diagrams (3 of 5) for Ford Thunderbird LX 1994:

• (behind right cowl panel)
• (below front of console)
• Aode transmission
• Canp
• Electronic pressure ctrl (epc) sol
• Epc
• Evp
• G108 (left radiator support)
• Hot in run
• Iac
• Inj1
• Inj3
• Inj5
• Inj7
• Lfc
• Mlps
• Not used
• Powertrain control module
• Primary junction block
• Pwr grd
• Red
• Run fuse 5a
• Shift sol (ss)
• Tan
• Tan/red
• Tcc
• Tcil
• Torque converter clutch sol
• Transmission control switch
• Transmission oil temp (tot) sensor
• Tss
• Vpwr
• Wac
• Warning chime module pin 10

4.6L, Engine Performance Wiring Diagrams (4 of 5) for Ford Thunderbird LX 1994

List of elements for 4.6L, Engine Performance Wiring Diagrams (4 of 5) for Ford Thunderbird LX 1994:

• (behind right cowl panel)
• (lower left rear
• (lower right rear
• (rear of engine in exhaust pipe)
• (right front of engine compart- ment on safety wall)
• (right front of engine compartment)
• (right rr of engine)
• A/c high pressure cut- out/fan switch
• Acpsw
• Boo
• Canister
• Cid
• Control (iac)
• Egr vacuum
• Exhaust manifold)
• Hazard lamps
• Heated oxygen sensor #1
• Heated oxygen sensor #2
• Heated oxygen sensor #3
• Heated oxygen sensor #4 (rear of engine in exhaust pipe)
• Ho2s-21
• Htr-11
• Htr-12
• Htr-21
• Htr-22
• Idle air
• Inj
• Inj2
• Inj4
• Inj6
• Inj8
• Maf
• Nca
• Of engine in
• Powertrain control module
• Purge
• Pwr grd
• Red
• Regulator (evr)
• Sig rtn
• Solenoid
• Tan
• Tan/red
• Turn/stop/
• Valve
• Vpwr
• Vref

4.6L, Engine Performance Wiring Diagrams (5 of 5) for Ford Thunderbird LX 1994

List of elements for 4.6L, Engine Performance Wiring Diagrams (5 of 5) for Ford Thunderbird LX 1994:

• (left side of transmission)
• 13 fl fuse 20a
• 15 fl fuse 20a
• 5 fl fuse 60a
• A/c clutch controller
• A/c clutch diode
• A/c comp- ressor clutch
• A/c high pressure cutout/ fan switch
• Cooling fan motor
• Edf relay
• Edf relay controller
• Eec power relay
• Fuel pump relay
• G109 (right radiator support)
• Hedf relay
• Hot at all times
• Integrated relay control module (ircm) (right front of engine compartment, mounted on upper radiator support)
• Manual lever position sensor (mlps)
• Output shaft speed sensor
• Power distribution box
• Red
• Solid state