1981 Malibu
- Emission Control System: The 1981 Malibu utilizes a carburetor-based emission control system that includes components such as a catalytic converter, air pump, and EGR (Exhaust Gas Recirculation) valve. These components work together to reduce harmful emissions released into the atmosphere.
- ECM (Engine Control Module): The 1981 Malibu does not have an ECM as the engine is managed by a traditional mechanical distributor and carburetor setup.
1985 Chevy Truck 305
- Emission Control System: The 1985 Chevy truck 305 introduces a more advanced electronic fuel injection (EFI) system paired with a catalytic converter and oxygen sensor. This system provides more precise control over fuel delivery and engine operation, resulting in improved fuel efficiency and reduced emissions.
- ECM (Engine Control Module): The 1985 Chevy truck 305 is equipped with an ECM, which is responsible for managing various aspects of the engine's operation, including fuel injection, ignition timing, and emissions control.
In summary, the 1981 Malibu employs a carburetor-based emission control system and lacks an ECM, while the 1985 Chevy truck 305 incorporates an electronic fuel injection system and utilizes an ECM for engine control.
