1968 Shelby GT500

1985-89 2.3L Turbo pinouts

Pin #
Wire Color
Connections for a 1985-89 2.3L Turbo
Value at Idle
01
YEL
+12 Battery Voltage
12-14 volts
04
DG/Y
IDM / Ignition Diagnostic Monitor (TFI)
20-31hz
07
LGRN/RED
ECT / Engine Coolant Temp Sensor
3 volts = 70*F
10
BLK/YEL
A/C ON input
A/C ON = 12 volts
16
BLK/ORG
Ignition Ground (TFI)
< 0.1volts (open to ground)
17
YEL/BLK
MIL / Engine Light & STO / Self-Test Output
ON = GND / OFF = open
20
BLK
Ground
< 0.1volts (open to ground)
21
GRY/WHT
IAB / Idle Air Bypass
3.0 – 12.0 volts
22
TAN/LGRN
FPR / Fuel Pump Relay
ON = GND / OFF = open
23
YEL/RED
KS / Knock Sensor
2.5 volts = knock present
25
LGRN/PNK
VAT / Vain Air Temp
3 volts = 70*F
26
ORG/WHT
Voltage Reference
4.9-5.1 volts
29
DK GRN
HEGO
0.0-1.0 volts
30
YEL/RED
Transmission Neutral Interface
0.0 volts in neutral
34
BLU/PUR
DOL / Data-Output Link
5 volts
35
YEL
EGR Solenoid
ON = GND / OFF = open
36
YEL/LGRN
SPOUT / Spark Output Signal (TFI)
6.93 volts
37
RED
EEC Relay +12 volts
12-14 volts
40
BLK
Ground
< 0.1volts (open to ground)
43
WHT/BLK
VAF / Vain Air Flow
0.8 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
BLK/WHT
STI / Self-Test Input
GND = Self-Test
49
ORG
Ground
< 0.1volts (open to ground)
54
ORG/BLU
A/C WOT Relay
OFF = GND / ON = open
56
BLK
PIP / Profile Ignition Pickup (TFI)
6.93 volts
57
RED
EEC Relay +12 volts
12-14 volts
58
TAN/RED
Injectors 3 & 4
4.9-5.2ms duty cycle
59
TAN/ORG
Injectors 1 & 2
4.9-5.2ms duty cycle
60
BLK
Ground
< 0.1volts (open to ground)

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

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