GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2002 🢒 Alero Export 🢒 Body and Accessories 🢒 Wiring Systems 🢒 Engine Controls Component Views
Figure 1:

LH Side of Engine
Object Number: 891991 Size: LF
(1)C130
(2)Manifold Absolute Pressure (MAP) Sensor
(3)Exhaust Gas Recirculation (EGR) Valve
(4)Throttle Position (TP) Sensor
(5)Throttle Body
(6)Fuel Pressure Regulator
(7)Engine Oil Pressure (EOP) Sensor
(8)Knock Sensor (KS)
(9)Crankshaft Position (CKP) Sensor A Connector
(10)Positive Crankcase Ventilation (PCV) Valve
(11)Fuel Rail
(12)Upper Intake Manifold
Figure 2:

RH Side of Engine
Object Number: 891993 Size: LF
(1)Upper Intake Manifold
(2)Manifold Absolute Pressure (MAP) Sensor
(3)Spark Plug Wires
(4)Ignition Coil
(5)Heated Oxygen Sensor (HO2S) Sensor 1
(6)Crankshaft Position (CKP) Sensor B
(7)Exhaust Gas Recirculation (EGR) Valve
(8)Throttle Position (TP) Sensor
(9)Fuel Feed and Return Pipes
(10)Throttle Body
(11)Idle Air Control (IAC) Valve
(12)Positive Crankcase Ventilation (PCV) Valve
(13)Evaporative Emission (EVAP) Canister Purge Solenoid
Figure 3:

Left Front of Intake Manifold
Object Number: 1333021 Size: LF
(1)Fuel Injector Harness
(2)Engine Coolant Temperature (ECT) Sensor Connector
(3)Engine Coolant Temperature (ECT) Sensor
Figure 4:

Left Middle of the Engine
Object Number: 1333016 Size: LF
(1)Camshaft Position (CMP) Sensor
Figure 5:

Fuel Rail
Object Number: 1333019 Size: LF
(1)Fuel Injector 2
(2)Fuel Injector 4
(3)Fuel Injector 6
(4)Fuel Rail
(5)Fuel Injector 5
(6)Fuel Injector 3
(7)Fuel Injector 1
Figure 6:

Upper Left Rear of the Engine
Object Number: 1333140 Size: LF
(1)Generator
(2)Ignition Control Module (ICM), C3
(3)Heated Oxygen Sensor (HO2S) Sensor 1 Pigtail and Connector
(4)Ignition Control Module (ICM), C2
(5)Ignition Control Module (ICM), C1
Figure 7:

Top Left Side of Engine
Object Number: 531485 Size: LF
(1)Exhaust Gas Recirculation (EGR) Valve
(2)Idle Air Control (IAC) Valve
(3)Evaporative Emission (EVAP) Canister Purge Solenoid
Figure 8:

Left Top of the Engine
Object Number: 1375031 Size: LF
(1)Exhaust Gas Recirculation (EGR) Valve
(2)Mass Air Flow (MAF) Sensor
(3)Intake Air Temperature (IAT) Sensor
Figure 9:

Front of the Engine Compartment
Object Number: 891406 Size: LF
(1)Crankshaft Position (CKP) Sensor A
(2)Knock Sensor (KS)
(3)Engine Oil Pressure (EOP) Sensor
(4)A/C Compressor Clutch
Figure 10:

Right Rear of Engine
Object Number: 374682 Size: LF
(1)Vehicle Speed Sensor (VSS)
(2)Vehicle Speed Sensor (VSS) Connector
Figure 11:

Evaporative Emission (EVAP) Canister Vent Solenoid
Object Number: 801033 Size: LF
(1)Evaporative Emission (EVAP) Canister Vent Solenoid
Figure 12:

Heated Oxygen Sensor (HO2S) Sensor 2
Object Number: 801037 Size: LF
(1)Heated Oxygen Sensor (HO2S) Sensor 2
Figure 13:

Fuel Pump and Sender Assembly
Object Number: 801039 Size: SH
(1)Fuel Tank Pressure (FTP) Sensor
(2)Fuel Pump and Sender Assembly
(3)Fuel Level Sensor
Figure 14:

Left Side of Passenger Compartment
Object Number: 801031 Size: LF
(1)Fuse Block - Left I/P
(2)C500
(3)C501
(4)Seat Belt Switch Connector
(5)C306
(6)G301
(7)C300
(8)Powertrain Control Module (PCM)