GM Service Manual Online
For 1990-2009 cars only

Engine Controls Component Location Table

Name

Location

Locator View

Connector End View

Group No.

Canister, EVAP Purge Solenoid

Top of the engine next to the MAP Sensor

201-7, Figure 11

--

3.130

Coil, Ignition

Top of the engine behind the Generator

201-7, Figure 11

--

2.170

Distributor

Top rear of the engine

201-8, Figure 12

--

2.361

Injector, Fuel #1

Top LH front of the engine under the manifold cover

201-8, Figure 13

--

3.300

Injector, Fuel #2

Top RH front of the engine under the manifold cover

201-8, Figure 13

--

3.300

Injector, Fuel #3

Top LH front of the engine under the manifold cover

201-8, Figure 13

--

3.300

Injector, Fuel #4

Top RH front of the engine under the manifold cover

201-8, Figure 13

--

3.300

Injector, Fuel #5

Top LH front of the engine under the manifold cover

201-8, Figure 13

--

3.300

Injector, Fuel #6

Top RH front of the engine under the manifold cover

201-8, Figure 13

--

3.300

Module, Distributor Ignition Control

Top of the engine in front of the coil

201-7, Figure 11

202-27

2.383

Module, Vehicle Control (VCM)

Left side of the engine compartment, side of the battery

201-4, Figure 8

202-27

--

Relay, Fuel Pump

Underhood Fuse Relay Center

201-43, Figure 63

--

3.900

Pump, Fuel Pump and Sender

Inside of the fuel tank

--

--

3.900

Sensor, Camshaft Position (CMP)

Side of the distributor

201-8, Figure 12

--

2.383

Sensor, Crankshaft Position (CKP)

Behind and to the right of the Engine Crankshaft Pulley

201-6, Figure 10

--

2.383

Sensor, Engine Coolant Temperature (ECT)

Side of the Linear EGR Valve Solenoid

201-6, Figure 10

202-35

2.682

Sensor, Heated Oxygen (H02S) Sensor 1

Right front exhaust Y-Pipe closest to the exhuast manifold

201-22, Figure 31

202-28

3.682

Sensor, Heated Oxygen (H02S) Sensor 2

Left front exhaust Y-Pipe

201-22, Figure 31

202-28

3.682

Sensor, Heated Oxygen (H02S) Sensor 3

Right front exhaust Y-Pipe closest to the catalytic converter

201-22, Figure 31

202-28

3.682

Sensor, Heated Oxygen (H02S) Sensor 4

Exhaust pipe between the catalytic converter and the muffler

201-22, Figure 31

202-28

3.682

Sensor, Intake Air Temperature (IAT)

Top of the air intake duct

201-10, Figure 14

--

3.682

Sensor, Knock

Left rear of the distributor on the engine block

201-8, Figure 11

--

2.383

Sensor, Manifold Absolute Pressure (MAP)

Top of the engine near the Ignition Coil

201-7, Figure 11

--

3.682

Sensor, Mass Air Flow (MAF)

Front of the air intake duct

201-10, Figure 14

--

3.682

Sensor, Throttle Position (TP)

Top of the engine, left side of the throttle body

201-8, Fig. 12

--

3.339

Sensor, Vehicle Speed (2WD)

Rear of the transmission

201-24, Figure 34

--

3.682

Sensor, Vehicle Speed (4WD)

Rear of the transfer case

201-25, Figure 35

--

3.682

Fuel Pump/Oil Pressure Switch

Rear of the engine, left rear of the distributor

201-8, Figure 12

--

1.800

Valve, Idle Air Control (IAC)

Top of the engine, left rear of the throttle body

201-8, Figure 12

202-29

3.820

Valve, Linear EGR Valve

Top of the engine, left of the generator

201-6, Figure 10

202-30

3.670

Refer to 8A-200 Master Component Section for connector, ground, pass through grommet, and splice location references.