GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Pontiac 🢒 1999 🢒 Firebird 🢒 Engine 🢒 Engine Controls - 3.8L 🢒 Engine Controls Connector End Views
Table 1: A/C Compressor Clutch
Table 2: A/C Refrigerant Pressure Sensor
Table 3: Camshaft Position (CMP) Sensor
Table 4: Crankshaft Position (CKP) Sensor
Table 5: Engine Coolant Temperature Sensor
Table 6: Engine Oil Level Switch
Table 7: Evaporative Emission (EVAP) Canister Purge Valve
Table 8: Evaporative Emission (EVAP) Canister Vent Valve
Table 9: Exhaust Gas Recirculation (EGR) Valve
Table 10: Fuel Injector #1
Table 11: Fuel Injector #2
Table 12: Fuel Injector #3
Table 13: Fuel Injector #4
Table 14: Fuel Injector #5
Table 15: Fuel Injector #6
Table 16: Heated Oxygen Sensor (HO2S), Bank 1, Sensor 1
Table 17: Heated Oxygen Sensor (HO2S), Bank 2, Sensor 1
Table 18: Heated Oxygen Sensor (HO2S), Bank 1, Sensor 3
Table 19: Intake Air Temperature (IAT) Sensor
Table 20: Manifold Absolute Pressure (MAP) Sensor
Table 21: Mass Air Flow (MAF) Sensor
Table 22: Vehicle Speed Sensor (VSS)

A/C Compressor Clutch


Object Number: 62440 Size: CH

Connector Part Information
    • 1216-2017
    • 2 Way F Metri-Pack 150 Series (GRY)

Pin

Wire Color

Circuit No.

Function

A

DK GRN

59

A/C Compressor Clutch Control

B

BLK

450

A/C Compressor Clutch Ground

A/C Refrigerant Pressure Sensor


Object Number: 219804 Size: CH

Connector Part Information
    • 1211-0192
    • 3 Way M Metri-Pack 150 Series Pull To Seat (BLK)

Pin

Wire Color

Circuit No.

Function

A

GRY

720

A/C Refrigerant Pressure Sensor Ground

B

LT BLU/BLK

1688

A/C Refrigerant Pressure Sensor 5.0V Reference

C

BLK

380

A/C Refrigerant Pressure Sensor Signal

Camshaft Position (CMP) Sensor


Object Number: 73223 Size: CH

Connector Part Information
    • 1216-2279
    • 3 Way F Metri-Pack 150 Series (GRY)

Pin

Wire Color

Circuit No.

Function

A

BRN/WHT

633

Camshaft Position (CMP) Sensor Signal - Input

B

RED/BLK

645

Reference Low

C

WHT/BLK

644

Ignition Feed

Crankshaft Position (CKP) Sensor


Object Number: 38608 Size: CH

Connector Part Information
    • 12162834
    •  4 Way Metri-Pack 150 Series (GRY)

Pin

Wire Color

Circuit No.

Function

A

LT BLU/WHT

1800

Crankshaft Position (CKP) Sensor Signal - Input

B

YEL

573

Reference Low

C

RED/BLK

645

Ignition Feed

D

WHT/BLK

644

Ignition Feed

Engine Coolant Temperature Sensor


Object Number: 62485 Size: CH

Connector Part Information
    • 1211-0192
    •  3 Way F Metri-Pack 150 Series Pull to Seat (BLK)

Pin

Wire Color

Circuit No.

Function

A

BRN

718

Engine Coolant Tenperature (ECT) Sensor Ground

B

YEL

410

Engine Coolant Temperature (ECT) Sensor Signal

C

DK BLU

135

Engine Coolant Temperature (ECT) Sensor Output

Engine Oil Level Switch


Object Number: 35437 Size: CH

Connector Part Information
    • 1205-2641
    • 2 Way F Metri-Pack 150 Series Sealed

Pin

Wire Color

Circuit No.

Function

A

BLK/WHT

451

Ground

B

BRN

1174

Oil Level Switch Signal

Evaporative Emission (EVAP) Canister Purge Valve


Object Number: 35437 Size: CH

Connector Part Information
    • 1205-2643
    • 2 Way Metri-Pack 150 Series Sealed (RED)

Pin

Wire Color

Circuit No.

Function

A

PNK

239

Ignition Feed

B

WHT

1310

EVAP Canister Purge Valve Control

Evaporative Emission (EVAP) Canister Vent Valve


Object Number: 35437 Size: CH

Connector Part Information
    • 1205-2643
    • 2 Way F Metri-Pack 150 Series Sealed (RED)

Pin

Wire Color

Circuit No.

Function

A

PNK

239

Ignition Feed

B

WHT

1310

EVAP Canister Vent Valve Control

Exhaust Gas Recirculation (EGR) Valve


Object Number: 68773 Size: CH

Connector Part Information
    • 1218-6056
    •  5 Way F Metri-Pack 150.2 Series Pull to Seat (BLK)

Pin

Wire Color

Circuit No.

Function

A

GRY

435

Exhaust Gas Recirculation (EGR) Valve Control

B

BLK

552

Exhaust Gas Recirculation (EGR) Sensor Ground

C

BRN

1456

Exhaust Gas Recirculation (EGR) Pintle Position

D

GRY

598

Exhaust Gas Recirculation (EGR) 5V Reference

E

LT BLU

697

Exhaust Gas Recirculation (EGR) Valve Ignition Feed

Fuel Injector #1


Object Number: 154327 Size: CH

Connector Part Information
    • 1212-9140
    • 2 Way F Metri-Pack 280.1 Series Pull To Seat (BLK)

Pin

Wire Color

Circuit No.

Function

A

PNK

639

Ignition Feed

B

BLK

1744

Fuel Injector #1 Control

Fuel Injector #2


Object Number: 154327 Size: CH

Connector Part Information
    • 1212-9140
    • 2 Way F Metri-Pack 280.1 Series Pull To Seat (BLK)

Pin

Wire Color

Circuit No.

Function

A

PNK

639

Ignition Feed

B

LT GRN/BLK

1745

Fuel Injector #2 Control

Fuel Injector #3


Object Number: 154327 Size: CH

Connector Part Information
    • 1212-9140
    • 2 Way F Metri-Pack 280.1 Series Pull To Seat (BLK)

Pin

Wire Color

Circuit No.

Function

A

PNK

639

Ignition Feed

B

PNK/BLK

1746

Fuel Injector #3 Control

Fuel Injector #4


Object Number: 154327 Size: CH

Connector Part Information
    • 1212-9140
    • 2 Way F Metri-Pack 280.1 Series Pull To Seat (BLK)

Pin

Wire Color

Circuit No.

Function

A

PNK

639

Ignition Feed

B

LT BLU/BLK

844

Fuel Injector #4 Control

Fuel Injector #5


Object Number: 154327 Size: CH

Connector Part Information
    • 1212-9140
    • 2 Way F Metri-Pack 280.1 Series Pull To Seat (BLK)

Pin

Wire Color

Circuit No.

Function

A

PNK

639

Ignition Feed

B

BLK/WHT

845

Fuel Injector #5 Control

Fuel Injector #6


Object Number: 154327 Size: CH

Connector Part Information
    • 1212-9140
    • 2 Way F Metri-Pack 280.1 Series Pull To Seat (BLK)

Pin

Wire Color

Circuit No.

Function

A

PNK

639

Ignition (RUN and START)

B

YEL/BLK

846

Fuel Injector #6 Control

Heated Oxygen Sensor (HO2S), Bank 1, Sensor 1


Object Number: 68760 Size: CH

Connector Part Information
    • 1216-0482
    • 4 Way F Metri-Pack 150 Series Sealed (BLK)

Pin

Wire Color

Circuit No.

Function

A

TAN

/WHT

1653

LF Heated Oxygen Sensor (HO2S) - Low

B

PPL/WHT

1665

LF Heated Oxygen Sensor (HO2S) - High

C

BLK

450

Ground

D

PNK

539

Ignition Feed

Heated Oxygen Sensor (HO2S), Bank 2, Sensor 1


Object Number: 68760 Size: CH

Connector Part Information
    • 1216-0482
    • 4 Way Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

TAN

1667

RFHeated Oxygen Sensor (HO2S) - Low

B

PPL

1666

RF Heated Oxygen Sensor (HO2S) - High

C

BLK

450

Ground

D

PNK

539

Ignition Feed

Heated Oxygen Sensor (HO2S), Bank 1, Sensor 3


Object Number: 40407 Size: CH

Connector Part Information
    • 121-60825
    • 4 Way M Metri-Pack 150 Series Sealed(BLK)

Pin

Wire Color

Circuit No.

Function

A

GRY

1981

Heated Oxygen Sensor (HO2S) - Low

B

DK BLU

1980

Heated Oxygen Sensor (HO2S) - High

C

BLK

450

Ground

D

PNK

539

Ignition Feed

Intake Air Temperature (IAT) Sensor


Object Number: 68719 Size: CH

Connector Part Information
    • 1216-2199
    • 2 Way F Metri Pack 150.2 Series Pull to Seat (GRY)

Pin

Wire Color

Circuit No.

Function

A

PPL

719

Intake Air Temperature (IAT) Sensor Ground

B

TAN

472

Intake Air Temperature (IAT) Sensor Signal

Manifold Absolute Pressure (MAP) Sensor


Object Number: 68740 Size: CH

Connector Part Information
    • 1212-9946
    • 3 Way F Metri Pack 150 Series (GRY)

Pin

Wire Color

Circuit No.

Function

A

ORN/BLK

469

Manifold Absolute Pressure (MAP) Sensor Ground

B

LT GRN

432

Manifold Absolute Pressure (MAP) Sensor Signal

C

GRY

598

Manifold Absolute Pressure (MAP) Sensor 5.0V Reference

Mass Air Flow (MAF) Sensor


Object Number: 62453 Size: CH

Connector Part Information
    • 1205-9595
    • 3 Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

YEL

492

Mass Air Flow (MAF) Sensor Signal

B

BLK/WHT

451

Ground

C

PNK

539

Ignition Feed

Vehicle Speed Sensor (VSS)


Object Number: 62471 Size: CH

Connector Part Information
    • 1216-2195
    • 2 Way F Metri-Pack 150.2 Series Pull to Seat (BLK)

Pin

Wire Color

Circuit No.

Function

A

PPL

401

Vehicle Speed Sensor (VSS) Signal - Low

B

YEL

400

Vehicle Speed Sensor (VSS) Signal - High