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Delco ECU used in General Motors vehicles built in 1996. An engine control unit (ECU), also called an engine control module (ECM), [1] is a device that controls various subsystems of an internal combustion engine. Systems commonly controlled by an ECU include the fuel injection and ignition systems.
Cadillac's new 368 cu in (6.0 L) L62 V8 with Digital Fuel Injection was a no-cost option except in California, where the fuel-injected Oldsmobile 350 remained available as a no-cost option. [ 14 ] 1985 Seville rear, two-tone with aftermarket fake spare wheel feature 1984 Cadillac Seville (front)
A typical ETC system consists of three major components: (i) an accelerator pedal module (ideally with two or more independent sensors), (ii) a throttle valve that can be opened and closed by an electric motor (sometimes referred to as an electric or electronic throttle body (ETB)), and (iii) a powertrain or engine control module (PCM or ECM). [4]
The development of an ECU involves both hardware and software required to perform the functions expected from that particular module. Automotive ECU's are being developed following the V-model. [ 1 ] Recently the trend is to dedicate a significant amount of time and effort to develop safe modules by following standards like ISO 26262 . [ 5 ]
Many owners tried to solve this by adding anhydrous alcohol, a common trick to deal with water in fuel, but this instead dissolved fuel pump seals and other parts. The stretchy fuel-pump timing chain was a minor problem in light of the other issues. Poor dealer service training only made all the problems worse. [8] General Motors also carried ...
The earliest electronic systems available as factory installations were vacuum tube car radios, starting in the early 1930s.The development of semiconductors after World War II greatly expanded the use of electronics in automobiles, with solid-state diodes making the automotive alternator the standard after about 1960, and the first transistorized ignition systems appearing in 1963.
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