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)

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Electronic Engine Controls

The electronic engine controls consist of the:
^ Camshaft Position (CMP) sensor
^ Powertrain Control Module (PCM)
^ Injector Driver Module
^ Engine Coolant Temperature (ECT) sensor
^ Manifold Absolute Pressure (MAP) sensor
^ Intake Air Temperature (IAT) sensor
^ Accelerator Pedal Position (APP) sensor
^ Oil Temperature sensor
^ Exhaust Back Pressure sensor
^ Crankshaft Position (CKP) sensor
^ Engine Oil Pressure sensor
^ Barometric Pressure (BARO) sensor

For further component description and operation, refer to Computers and Control Systems.