GM Service Manual Online
For 1990-2009 cars only
Figure 1:

System Component Locations


Object Number: 1372057  Size: LF
(1)Fuel Tank Pressure Sensor
(2)Modular Fuel Pump and Sender Assembly
(3)Manifold Absolute Pressure (MAP) Sensor
(4)Oil Pressure Sensor
(5)Heated Oxygen Sensors Bank 2
(6)Ignition Coil Module Bank 2
(7)Powertrain Interface Module
(8)EVAP Canister Purge Solenoid
(9)Powertrain Control Module (PCM)
(10)Engine Coolant Temperature (ECT) Sensor
(11)Mass Air Flow (MAF) Sensor
(12)A/C Refrigerant Pressure Sensor
(13)Intake Air Temperature (IAT) Sensor
(14)Engine Cooling Fans
(15)Throttle Position (TP) Sensor
(16)Idle Air Control (IAC) Valve
(17)Knock Sensor (KS)
(18)Crankshaft Position (CKP) Sensor
(19)Knock Sensor (KS)
(20)Camshaft Position (CMP) Sensor
(21)Under Hood Fuse Block
(22)Fuel Injectors
(23)Ignition Coil Module Bank 1
(24)Heated Oxygen Sensors Bank 1
(25)Vehicle Speed Sensor (VSS)
(26)Evaporative Canister Vent Solenoid
Figure 2:

Full Engine View LH Side


Object Number: 760771  Size: LF
(1)Ignition Coils/Modules Bank 2
(2)Evaporative Emission (EVAP) Canister Purge Solenoid
(3)Fuel Pulse Dampener
(4)Fuel Rail
(5)PCV Crossover Hose
(6)Ignition Coils/Modules Bank 1
(7)Heated Oxygen Sensor (H02S) Bank 1 Sensor 1 Mounting Flange
(8)Engine Coolant Temperature (ECT) Sensor
(9)Fuel Pressure Gauge Test Connector
(10)Throttle Position (TP) Sensor
(11)Idle Air Control (IAC) Valve
(12)Throttle Body
Figure 3:

Front of Engine


Object Number: 218886  Size: MF
(1)Idle Air Control (IAC) Valve
(2)Throttle Position (TP) Sensor
(3)Generator
(4)Throttle Body
Figure 4:

Rear of Engine


Object Number: 247435  Size: MF
(1)Manifold Absolute Pressure (MAP) Sensor
(2)Camshaft Position (CMP) Sensor
(3)Engine Oil Pressure (EOP) Switch
(4)Knock Sensor (KS) Jumper Harness
Figure 5:

Knock Sensors


Object Number: 198593  Size: MF
(1)Knock Sensor (KS) 1
(2)Knock Sensor (KS) 2
Figure 6:

Crankshaft Position Sensor Location


Object Number: 222858  Size: MF
(1)CKP Mounting Bolt
(2)CKP Mounting Location
(3)Crankshaft Position (CKP) Sensor
Figure 7:

Heated Oxygen Sensors


Object Number: 1372079  Size: LF
(1)Heated Oxygen Sensor Bank Two Sensor One
(2)Heated Oxygen Sensor Bank One Sensor One
(3)Heated Oxygen Sensor Bank One Sensor Two
(4)Heated Oxygen Sensor Bank Two Sensor Two
Figure 8:

Powertrain Control Module


Object Number: 1372082  Size: SH
(1)Powertrain Control Module (PCM)
Figure 9:

Mass Air Flow/ Intake Air Temperature Air Cleaner Assembly


Object Number: 1372084  Size: SH
(1)Mass Air Flow (MAF) Sensor
(2)Intake Air Temperature (IAT) Sensor
(3)Air Intake Duct to Throttle Body
(4)Air Cleaner Housing
Figure 10:

Fuel Pump Relay


Object Number: 1372092  Size: SH
(1)Fuel Pump Relay