Powertrain Management: Description and Operation

PURPOSE

The electronic Powertrain Management system constantly monitors and adjusts the operation of the FUEL DELIVERY, IGNITION TIMING, EMISSION CONTROL, and TRANSMISSION CONTROL SYSTEMS, to achieve the best compromise between engine performance, fuel consumption, and emissions reduction.

INFORMATION STRUCTURE


Computerized Engine Controls

Powertrain Control Module (PCM), On-Board Diagnostics (OBD), input sensors, and output actuators.

Fuel Delivery System

Air/fuel intake system and related components. [1]

Ignition Timing System

Primary and secondary ignition systems and related components. [1]

Emission Control Systems

Emission control systems and related components. [1]

Transmission Control System

Electronically Controlled Transmission, including On-Board Diagnostics


[1] Does not include information regarding electronic engine controls.