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Looking for '98 LS1 ECU Pinout

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Old 03-02-2010, 07:51 PM
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Default Looking for '98 LS1 ECU Pinout

like it says, need some help figuring stuff out.

thanks
Old 03-03-2010, 07:14 PM
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PCM Connector C1 (Red)



Connector Part Information
PCM Connector C1 (Red)
80 Pin Connector

Pin
Wire Color
Circuit No.
Function

1-2
--
--
Not Used

3
WHT
1310
EVAP Canister Vent Solenoid Valve Control

4
BRN/WHT
633
Camshaft Position Sensor Signal

5-6
--
--
Not Used

7
YEL
400
VSS Signal High

8
--
--
Not Used

9
PNK/BLK
1746
Injector #3 Control

10
--
--
Not Used

11
DK BLU
229
VTD Fuel Enable

12
LT BLU/BLK
844
Injector #4 Control

13
RED/WHT
2122
Injector #2 Control

14
DK GRN
59
A/C Status

15
BLK/WHT
845
Injector #5 Control

16-17
--
--
Not Used

18
YEL/BLK
846
Injector #6 Control

19-20
--
--
Not Used

21
PPL
719
IAT Sensor Ground

22
DK BLU
1225
Transmission Range Signal B

23
LT GRN/BLK
1745
Injector #2 Control

24
BLK/WHT
1704
Sensor Ground Jumper

25
PNK
1224
Transmission Range Signal A

26
--
--
Not Used

27
RED/BLK
877
Injector #7 Control

28-29
--
--
Not Used

30
GRY/BLK
1687
Spark Retard Signal

31
DK BLU/WHT
878
Injector #8 Control

32
ORN/BLK
434
PNP Switch Signal

33
BLK
1744
Injector #1 Control

34
GRY or WHT
587 or 687
Skip Shift Solenoid (M/T) or 3-2 Shift Solenoid (A/T)

35
LT GRN
1222
1-2 Shift Solenoid

36
DK/BLU
1936
Fuel Gauge Output Control

37
BRN/WHT
419
MIL Control

38
--
--
Not Used

39
DK GRN/WHT
459
A/C Clutch Relay Control

40
WHT or YEL/BLK
375 or 1223
Skip Shift Lamp Control (M/T) or 2-3 Shift Solenoid (A/T)

41
BRN/WHT
1173
Low Oil Level Indicator Lamp Control

42
LT GRN
1652
Reverse Inhibit Solenoid Control

43
DK/GRN
335
Cooling Fan Relay #1 Control

44
YEL
573
Crankshaft Position Sensor Signal Input

45
DK GRN/WHT
428
EVAP Canister Purge Valve Control

46
--
--
Not Used

47
DK GRN/WHT
762
A/C Request Signal

48
YEL
492
MAF Signal

49
PPL
2121
Ignition #1 Control

50-51
--
--
Not Used

52
PPL/WHT
2128
Ignition #8 Control

53
RED
2127
Ignition #7 Control

54
LT BLU/WHT
2126
Ignition #6 Control

55
DK GRN/WHT
817
VSS Output Signal

56
DK GRN
2125
Ignition #5 Control

57
DK GRN/WHT
2124
Ignition #4 Control

58
LT BLU
2123
Ignition #3 Control

59
BRN/WHT
2130
Ignition Control Reference Low Bank 2

60
BRN
2129
Ignition Control Reference Low Bank 1

61
RED
1226
Transmission Range Signal C

62
BLK
552
EGR Pintle Position Ground

63
BLK
407
A/C Refrigerant Pressure Sensor Ground

64-70
--
--
Not Used

71
PPL
401
VSS Signal Low

72
BLK
451
PCM Ground

73-74
--
--
Not Used

75
GRY
720
Left and Right Fuel Tank Level Sensor Ground

76
BLK
451
PCM Ground

77
PPL
420
TCC/Brake Switch Signal

78-80
--
--
Not Used

PCM Connector C2 (Blue)



Connector Part Information
PCM Connector C2 (Blue)
80 Pin Connector

Pin
Wire Color
Circuit No.
Function

1
TAN
1671
HO2S Signal Low Bank 2 Sensor 2

2
TAN/WHT
1669
HO2S Signal Low Bank 1 Sensor 2

3
TAN
800
Serial Data (UART)

4
RED
631
Camshaft Position Sensor B+ Supply

5
TAN
1667
HO2S Signal Low Bank 2 Sensor 1

6
TAN/WHT
1653
HO2S Signal Low Bank 1 Sensor 1

7
RED/BLK
380
A/C Refrigerant Pressure Sensor Signal

8
TAN
472
IAT Sensor Signal

9
BRN
1456
EGR Pintle Position Sensor Signal

10
PPL
30
Fuel Level Sensor Signal

11
--
--
Not Used

12
DK BLU
417
TP Sensor Signal

13
YEL/BLK
1227
Transmission Fluid Temperature Sensor Signal

14
ORN/BLK
1057
Transmission Fluid Temperature Sensor Ground

15-18
--
--
Not Used

19
PNK
439
PCM Ignition 1 Feed

20
ORN
340
PCM Battery Feed

21
BLK
451
PCM Ground

22
YEL/BLK
1868
Crankshaft Position Sensor Ground

23
BLK
452
TP Sensor Ground

24
BLK/WHT
1704
Sensor Ground Jumper

25
BRN
718
ECT Sensor Ground

26
ORN/BLK
469
MAP Sensor Ground

27
--
--
Not Used

28
DK BLU
473
Engine Cooling Fan Relay #2 and #3 Control

29
--
--
Not Used

30
BRN
436
AIR Pump Relay Control

31
PPL
421
AIR Solenoid Relay Control

32
TAN/BLK
422
TCC Enable Solenoid

33
BRN
418
TCC (PWM) Solenoid Valve Control

34
GRY
435
EGR Valve Ground

35
WHT
121
Engine Speed (Tach) Output Signal

36
LT BLU/WHT
1229
Transmission Fluid Pressure Control Solenoid Control Low

37
DK GRN/WHT
465
Fuel Pump Relay Control

38
LT BLU
697
EGR Valve Control Circuit

39
RED/BLK
1228
Transmission Fluid Pressure Control Solenoid Control High

40
--
--
Not Used

41
PPL
1670
HO2S Signal High Bank 2 Sensor 2

42
PPL/WHT
1668
HO2S Signal High Bank 1 Sensor 2

43
GRY
596
TP Sensor 5V Reference

44-45
--
--
Not Used

46
PPL
1666
HO2S Signal High Bank 2 Sensor 1

47
PPL/WHT
1665
HO2S Signal High Bank 1 Sensor 1

48
LT GRN
432
MAP Sensor Signal

49
YEL
410
ECT Sensor Signal

50-51
--
--
Not Used

52
DK GRN
890
Fuel Tank Pressure Sensor Signal

53
--
--
Not Used

54
LT GRN/BLK
444
IAC Coil B Low

55
LT BLU/BLK
1748
IAC Coil A Low

56
LT BLU/WHT
1747
IAC Coil A High

57
LT GRN/WHT
1749
IAC Coil B High

58
PPL
1807
Serial Data (Class 2)

59
--
--
Not Used

60
BLK
451
PCM Ground

61
ORN
340
PCM Battery Feed

62
LT GRN
1867
Crankshaft Position Sensor B+ Supply

63
--
--
Not Used

64
GRY
416
MAP Sensor 5.0 Volt Reference

65
GRY
705
5V Reference

66
GRY
474
A/C Refrigerant Pressure Sensor 5.0 Volt Reference

67
GRY
598
5V Reference

68
LT BLU
1876
Knock Sensor (KS) Rear

69
DK BLU
496
Knock Sensor (KS) Front

70
PNK/BLK
632
Camshaft Position Sensor Ground

71-75
--
--
Not Used

76
BRN
1174
Oil Level Sensor Signal

77-80
--
--
Not Used



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