93must

Getting all of my gauges installed this week. Was wondering if somone knew which wires are the o2 censors that go into the computer so I can hook up my air fuel gauge to them? I assume thats where they hook to ? Or a wiring diagram?I bought the auto meter NV's, and I also bought the bezel that puts the gauges under the radio. I am thinking about turning it upside down so the gauges are on top of the radio and easier to read. I will see how it looks and post some pics later. thanks for any help!

90Lxstanger

Hey check out www.fordfuelinjection.comand look the the EEC part i think the have a pic that tells what all the pins are, i cant remember for sure of the top of the head though

90Lxstanger

Here ya go Im pretty sure this the the pins and what the relate to, if someone could back me up on this tho.....





Pin #

Wire Color
Connections for a 88-93 5.0L HO Mustang

Value at Idle


01

YEL
+12 Battery Voltage

12-14 volts


03

DG/WHT
VSS + / Vehicle Speed Sensor Positive

55MPH = 125hz


04

DG/Y
IDM / Ignition Diagnostic Monitor (TFI)

20-31hz


06

ORG/YEL
VSS - / Vehicle Speed Sensor Negitive

55MPH = 125hz


07

LG/RED
ECT / Engine Coolant Temp Sensor

0.5 volts = 200*F


09

TAN/BLU
MAF RTN / Mass Air Flow Return

< 0.1volts


12

BRN/YEL
Fuel Injector 3

4.9-5.2ms duty cycle


13

BRN/BLU
Fuel Injector 4

4.9-5.2ms duty cycle


14

TAN/ORG
Fuel Injector 5

4.9-5.2ms duty cycle


15

LG/ORG
Fuel Injector 6

4.9-5.2ms duty cycle


16

BLK/ORG
Ignition Ground (TFI)

-


17

TAN
MIL / Engine Light & STO / Self-Test Output

ON = GND


19

DG/YEL
FPM / Fuel Pump Monitor

Pump on = 12-14volts


20

BLK
Ground

< 0.1volts


21

WHT/BLU
IAB / Idle Air Bypass

3.0 - 12.0 volts


22

BLU/ORG
FPR / Fuel Pump Relay

ON = GND


25

GRAY
ACT / Air Charge Temp Sensor

3 volts = 70*F


26

ORG/WHT
Voltage Reference

4.9-5.1 volts


29

DK GRN
Right HEGO

0.0-1.0 volts


30

BLU/YEL
Transmission Neutral Interface

0.0 volts in neutral


36

YEL/LGRN
SPOUT / Spark Output Signal (TFI)

-


37

RED
EEC Relay +12 volts

12-14 volts


40

BLK
Ground

< 0.1 volt


42

TAN/RED
Fuel Injector 7

4.9-5.2ms duty cycle


43

DK BLU
Left HEGO

0.0-1.0 volts


45

GRN/BLK
BP / Barometric Pressure Sensor

159hz = sea level


46

GRY/RED
Signal Return

0.1 volts


47

DK GRN
TPS / Throttle Position Sensor

0.9 volts


48

TAN/RED
STI / Self-Test Input

GND = Self-Test


49

ORG
Ground

< 0.1 volt


50

BLU/RED
MAF / Mass Air Flow Sensor

0.8 volts


52

LT BLU
Fuel Injector 8

4.9-5.2ms duty cycle


56

DK BLU
PIP / Profile Ignition Pickup (TFI)

-


57

RED
EEC Relay +12 volts

12-14 volts


58

TAN/RED
Fuel Injector 1

4.9-5.2ms duty cycle


59

TAN/ORG
Fuel Injector 2

4.9-5.2ms duty cycle


60

BLK
Ground

< 0.1volt