FORD 5.0 SEFI WIRING DETAILS
Mustang Harness (typical)
EEC#
...Engine Harness Connectors and wire codes...
EEC connector
(for referance only- no modifications to connector wires required)
A long flat 60 pin (3 vertical rows of 20) connector at the EEC unit (not all positions used)
pin 1...ckt #37...16ga...yellow...battery to load
pin 2...not used
pin 3...ckt #679...18ga...gray w/ black stripe...VSS
pin 4...ckt #11...18ga...tan w/ yellow stripe...ign coil neg
pin 5...not used
pin 6...ckt #676...18ga...pink w/ orange stripe...VSS return
pin 7...ckt #354...18ga...lite green w/ red stripe...coolant temp feed
pin 8...not used
pin 9...ckt #968...18ga...tan w/ lite blue...MASS return
pin 10...ckt #347...18ga...black w/ yellow stripe...AC compressor clutch
pin 11...not used
pin 12...ckt #557...18ga...brown w/ yellow stripe...#3 injector
pin 13...ckt #558...18ga...brown w/ lite green stripe...#4 injector
pin 14...ckt #559...18ga...tan w/ black stripe...#5 injector
pin 15...ckt #560...18ga...lite green w/ orange stripe...#6 injector
pin 16...ckt #259...18ga...orange w/ red stripe...TFI module ground
pin 17...ckt #658...18ga...pink w/ lite green stripe..."check engine" lamp
pin 18...not used
pin 19...ckt #238...14ga...dark green w/ yellow stripe...fuel pump relay to safety switch
pin 20...ckt #57...14ga...black...ground circuit
pin 21...ckt #264...18ga...white w/ lite blue stripe...idle speed control motor #1
pin 22...ckt #926...18ga...lite blue w/ orange stripe...fuel pump relay control
pin 23...not used
pin 24...not used
pin 25...ckt #743...18ga...grey...air charge temp
pin 26...ckt #351...18ga...brown w/ white stripe...power to engine sensors
pin 27...ckt #352...18ga...brown w/ lite green stripe...EGR feedback
pin 28...not used
pin 29...ckt #74...18ga...grey w/ lite blue stripe...O2 sensor #1
pin 30...ckt #199...18ga...lite blue w/ yellow stripe...shifter position or clutch
pin 31...ckt #101...18ga...grey w/ yellow stripe...cannister purge solenoid
pin 32...ckt #911...18ga...white w/ lite green stripe...overdrive cancel indicator lamp
pin 33...ckt #360...18ga...brown w/ pink stripe...EGR valve regulator solenoid
pin 34...not used
pin 35...not used
pin 36...ckt #929...18ga...pink...spark output signal from TFI module
pin 37...ckt #361...14ga...red...power relay output from EEC relay
pin 38...ckt #925...18ga...white w/ yellow stripe...electronic pressure control
pin 39...not used
pin 40...ckt #570...14ga...black w/ white stripe...dedicated ground
pin 41...not used
pin 42...ckt #561...18ga...tan w/ red stripe...#7 injector
pin 43...ckt #94...18ga...red w/ black stripe...O2 sensor #2
pin 44...not used
pin 45...ckt #358...18ga...lite green w/ black stripe...MAP sensor
pin 46...ckt #359...18ga...grey w/ red stripe...sensor signal return
pin 47...ckt #355...18ga...grey w/ white stripe...TPS sensor
pin 48...ckt #209...18ga...white w/ pink stripe...to test connector
pin 49...ckt #89...18ga...orange...fuel sensor ground
pin 50...ckt #967...18ga...lite blue w/ red stripe...MASS signal
pin 51...not used
pin 52...ckt #562...18ga...lite blue...#8 injector
pin 53...not used
pin 54...ckt #331...18ga...pink w/ yellow stripe...wide open throttle AC cutout switch
pin 55...not used
pin 56...ckt #395...18ga...grey w/ orange stripe...profile ignition pickup from TFI module
pin 57...ckt #361...14ga...red...power relay output from EEC relay
pin 58...ckt #555...18ga...tan...#1 injector or bank #1
pin 59...ckt #556...18ga...tan...#2 injector or bank #2
pin 60...ckt #570...14ga...black w/ white stripe...dedicated ground
connector
(right cowl area)
round connector with 8 pins (2 flat rows of 4) w/ 6 wires connected
red...16ga...ckt #361...power output from EEC relay (connect to fuel pump relay coil "+")
lite blue w/ orange stripe...18ga...ckt #926...fuel pump relay control (connect to fuel pump relay coil "-")
pink w/ orange stripe...18ga...ckt #617...air bag module (no connection required)
pink w/ white stripe...18ga...ckt #619...air bag module (no connection required)
pink w/ lite blue stripe...18ga...ckt #620...air bag module (no connection required)
pink w/ lite green stripe...18ga...ckt #618...air bag module (no connection required)
connector
(left side of dash panel)
round connector with 8 pins (2 flat rows of 4) w/ 8 wires connected
red w/ white stripe...18ga....ckt #39...temp sender (connect to dash gauge)
tan w/ yellow stripe...18ga...ckt #11...ign coil negative (connect to tach "signal input")
white w/ red stripe...18ga...ckt #31...oil press. sender (connect to dash gauge)
red w/ lite green stripe...16ga...ckt #16...coil "+" power (connect to ign switch "start/run")
white w/ purple stripe...18ga...ckt #26...anti theft deck switch (not used)
red w/ lite blue stripe...18ga...ckt #32...starter solenoid "start" (connect to ign "start" thru nuetral safety or clutch switch)
purple w/ yellow stripe...18ga...ckt #771...5th gear sensor (not used)
grey w/ red stripe...18ga...ckt #359...sensor signal return for transmission (not used)
connector
(right cowl area)
rectangular connector with 8 pins (2 rows of 4) w/ 8 wires connected
pink w/ lite green stripe (2)...18ga...ckt #658..."check engine" lamp (connect to check engine lamp "+")
pink w/ orange stripe...18ga...ckt #676...VSS "-" return (connect to VSS "-")
dark green w/ yellow stripe...14ga...ckt #238...fuel pump relay to safety switch (connect to fuel pump "+")
purple...16ga...ckt #348...AC demand signal (connect to wire energized when AC is on)
grey w/ yellow stripe...12ga...ckt #687...ACC feed (connect to ign switch "ACC")
grey w/ black stripe...18ga...ckt #679...VSS signal (connect to VSS "+")
white w/ pink stripe...16ga...ckt #258...low oil relay to sensor (connect to low oil lite lamp "ground" side)
connector
(buss bar ground terminal)
black w/ white stripe...12ga...ckt #570...dedicated ground (connect to chassis ground)
connector
(near starter relay)
teardrop shaped connector with 2 pins w/ 2 wires attached
black w/ yellow stripe...16ga...ckt #347...AC compressor clutch (connect to AC clutch "energize" wire)
black w/ white stripe...16ga...ckt #570...dedicated ground (connect to compressor body)
connector
(to starter relay)
dark blue...20ga fusible link...ckt #302...starter relay (connect to starter side of starter relay)
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