GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2001 🢒 Sonoma Pickup - 2WD 🢒 Engine 🢒 Engine Controls - 4.3L 🢒 Engine Controls Component Views
Figure 1:

Air Injection (AIR) Fuse Block
Object Number: 401623 Size: MF
(1)C117
(2)Splice S105
(3)AIR Fuse Block
(4)AIR Jumper Harness
Figure 2:

Secondary Air Injection (AIR) Pump, Shut Off Valve, and Solenoid Valve
Object Number: 573049 Size: MF
(1)Wiring Harness
(2)Secondary Air Injection (AIR) Pump
(3)AIR Shut-Off Valve
(4)AIR Solenoid Valve
(5)Radiator Support
Figure 3:

Battery MegaFuse and Air Injection (AIR) Jumper Harness
Object Number: 401632 Size: MF
(1)Radiator Support
(2)AIR Jumper Harness
(3)Battery MegaFuse
(4)Fuse Holder
(5)G100
(6)G112
(7)Battery Positive Cable
Figure 4:

Powertrain Control Module (PCM)
Object Number: 731893 Size: LF
(1)Powertrain Control Module (PCM)
(2)C102
(3)C101
(4)Body Harness
(5)Secondary Air Injection Pump Harness
(6)S121
(7)S113
(8)C117
(9)Powertrain Control Module (PCM), Connector C1
(10)Powertrain Control Module (PCM), Connector C2
(11)Engine Harness
Figure 5:

Fuse Block - Underhood and Electronic Brake Control Module (EBCM)
Object Number: 235171 Size: SF
(1)Electronic Brake Control Module (EBCM)
(2)Fuse Block - Underhood
(3)Left Front Fender
Figure 6:

Mass Air Flow (MAF) Sensor and Intake Air Temperature (IAT) Sensor
Object Number: 246881 Size: MF
(1)Intake Air Temperature (IAT) Sensor
(2)Air Outlet from Filter
(3)Distributor
(4)Knock Sensor (KS)
(5)Mass Air Flow (MAF) Sensor
Figure 7:

Crankshaft Position (CKP) Sensor
Object Number: 235188 Size: MF
(1)Crankshaft
(2)Front Engine Cover
(3)Crankshaft Position (CKP) Sensor
Figure 8:

Throttle Position (TP) Sensor, Idle Air Control (IAC) Valve, and Positive Crankcase Ventilation (PCV) Valve
Object Number: 212698 Size: MF
(1)Throttle Position (TP) Sensor
(2)Idle Air Control (IAC) Valve
(3)Ignition Coil
(4)Evaporative Emission (EVAP) Canister Purge Solenoid
(5)Engine Oil Pressure (EOP) Switch
(6)Knock Sensor (KS)
(7)Fuel Pressure Connection Valve
(8)Positive Crankcase Ventilation (PCV) Valve
Figure 9:

Manifold Absolute Pressure (MAP) Sensor, Exhaust Gas Recirculation (EGR) Valve, Evaporative Emission (EVAP) Canister Purge Solenoid, and Throttle Body
Object Number: 209643 Size: SF
(1)Throttle Body
(2)Exhaust Gas Recirculation (EGR) Valve
(3)Generator
(4)Evaporative Emission (EVAP) Canister Purge Solenoid
(5)Manifold Absolute Pressure (MAP) Sensor
Figure 10:

Left Side of the Engine Components (4.3L)
Object Number: 235186 Size: MF
(1)Bank 1 Cylinder Head
(2)Engine Coolant Temperature (ECT) Sensor
Figure 11:

Ignition Coil, Ignition Control Module (ICM), Manifold Absolute Pressure (MAP) Sensor, Throttle Body, and Evaporative Emission (EVAP) Canister Purge Solenoid
Object Number: 212690 Size: LF
(1)EVAP Pipe
(2)Central Sequential Fuel Injection (Central SFI) Connector
(3)Throttle Body
(4)Manifold Absolute Pressure (MAP) Sensor
(5)Ignition Control Module (ICM)
(6)Ignition Coil
(7)Evaporative Emission (EVAP) Canister Purge Solenoid
Figure 12:

Camshaft Position (CMP) Sensor, Knock Sensor (KS), and Engine Oil Pressure (EOP) Switch
Object Number: 212680 Size: MF
(1)Camshaft Position (CMP) Sensor
(2)Engine Oil Pressure (EOP) Sensor
(3)Knock Sensor (KS)
Figure 13:

Heated Oxygen Sensors (HO2S)
Object Number: 430019 Size: MF
(1)Heated Oxygen Sensors (HO2S) Bank 1 Sensor 2
(2)Heated Oxygen Sensors (HO2S) Bank 1 Sensor 1
(3)Heated Oxygen Sensors (HO2S) Bank 2 Sensor 1
Figure 14:

Secondary Air Injection (AIR) Pump, Shut Off Valve, and Solenoid Valve
Object Number: 573049 Size: MF
(1)Wiring Harness
(2)Secondary Air Injection (AIR) Pump
(3)AIR Shut-Off Valve
(4)AIR Solenoid Valve
(5)Radiator Support
Figure 15:

Vehicle Speed Sensor (VSS) - 2WD Automatic Transmission
Object Number: 209622 Size: SF
(1)Vehicle Speed Sensor (VSS)
Figure 16:

Vehicle Speed Sensor (VSS) - 2WD Manual Transmission
Object Number: 246886 Size: MF
(1)Vehicle Speed Sensor (VSS)
Figure 17:

Vehicle Speed Sensor (VSS) - 4WD Transfer Case
Object Number: 246883 Size: MF
(1)Vehicle Speed Sensor (VSS)
Figure 18:

Vehicle Speed Sensor (VSS) - NP4
Object Number: 240975 Size: MF
(1)Automatic Transmission
(2)Transfer Case - NVG136 (NP4)
(3)Vehicle Speed Sensor (VSS)
Figure 19:

Evaporative Emission (EVAP) Canister Vent Solenoid and Canister (4-Door Utility and Pickup)
Object Number: 235181 Size: LF
(1)Evaporative Emission (EVAP) Canister Vent Solenoid
(2)Crossmember
(3)EVAP Canister
(4)Fuel Tank
(5)Fuel Pump and Sender Assembly
Figure 20:

Fuel Tank Pressure (FTP) Sensor and Fuel Pump and Sender Assembly
Object Number: 235167 Size: MF
(1)Fuel Tank
(2)Fuel Tank Pressure (FTP) Sensor Connector
(3)Fuel Pump and Sender Assembly Connector
(4)Fuel Pump and Sender Assembly