Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Manifold Pressure/Vacuum Sensor: Locations



Engine Controls Component Views

Front of Engine (LS4)

Front Of Engine:




1 - Engine Coolant Temperature (ECT) Sensor
2 - Ignition Coil 1
3 - Ignition Coil 3
4 - Ignition Coil 5
5 - Ignition Coil 7
6 - Manifold Absolute Pressure (MAP) Sensor
7 - Throttle Body
8 - Engine Coolant Heater
9 - Knock Sensor (KS) Bank 1
10 - Engine Oil Level Switch
11 - Camshaft Position (CMP) Sensor

Top of Engine (LS4)

Top Of Engine:




1 - Ignition Coil 8
2 - Fuel Injector 8
3 - Evaporative Emission (EVAP) Canister Purge Solenoid Valve
4 - Manifold Absolute Pressure (MAP) Sensor
5 - Throttle Body
6 - Engine Oil Pressure (EOP) Sensor
7 - Fuel Injector 7
8 - Ignition Coil 7
9 - Fuel Injector 5
10 - Ignition Coil 5
11 - Fuel Injector 3
12 - Ignition Coil 3
13 - Fuel Injector 1
14 - Ignition Coil 1
15 - Fuel Injector 2
16 - Ignition Coil 2
17 - Fuel Injector 4
18 - Ignition Coil 4
19 - Fuel Injector 6
20 - Ignition Coil 6