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  2. On-board diagnostics - Wikipedia

    en.wikipedia.org/wiki/On-board_diagnostics

    GM's ALDL (Assembly Line Diagnostic Link) is sometimes referred to as a predecessor to, or a manufacturer's proprietary version of, an OBD-I diagnostic starting in 1981. This interface was made in different varieties and changed with power train control modules (aka PCM, ECM, ECU). Different versions had slight differences in pin-outs and baud ...

  3. Engine control unit - Wikipedia

    en.wikipedia.org/wiki/Engine_control_unit

    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.

  4. Powertrain control module - Wikipedia

    en.wikipedia.org/wiki/Powertrain_control_module

    PCM: Power-train control module (Ford, GM, JLR) ECM: Engine control module; Injection control unit (Peugeot, [2] Citroën, Fiat, Alfa, Lancia) DME/DDE: Digital Motor Electronics / Digital Diesel Electronics (BMW, [3] Mini) ECU: Electronic control unit / Engine control unit

  5. Chevrolet small-block engine (first- and second-generation)

    en.wikipedia.org/wiki/Chevrolet_small-block...

    The 1992–93 LT1s used speed density fuel management, batch-fire fuel injection and a dedicated Engine Control Module (ECM). In 1994 the LT1 switched to a mass airflow sensor and sequential port injection. A new, more capable computer controlled the transmission as well as the engine and got a new name: Powertrain Control Module (PCM). Where ...

  6. Development of electronics for GM auto racing - Wikipedia

    en.wikipedia.org/wiki/Development_of_electronics...

    By October, Chevy engines with DE equipment had won 13 of the 15 IndyCar races. When Emerson Fittipaldi won the 1989 Indianapolis 500 in a Chevrolet Indy V8 engine controlled by a Delco Electronics electronic engine control module (ECM), it was the first time in the 500's history that the engine of the winning vehicle was controlled by an ...

  7. Chevrolet Performance - Wikipedia

    en.wikipedia.org/wiki/Chevrolet_Performance

    In addition to individual engines, Chevrolet Performance also offers complete crate powertrains, billed under the Connect & Cruise name. The packages include an engine, a transmission, an engine control module, transmission control, and an installation kit. It comes in LS3 and LSA [7] configurations, which make 430 and 556 horsepower, respectively.

  8. General Motors ignition switch recalls - Wikipedia

    en.wikipedia.org/wiki/General_Motors_ignition...

    The General Motors ignition switch recalls refers to February 6, 2014 when General Motors recalled about 800,000 of its small cars due to faulty ignition switches, which could shut off the engine while the vehicle was in motion and thereby prevent the airbags from inflating. [1]

  9. Check engine light - Wikipedia

    en.wikipedia.org/wiki/Check_engine_light

    A check engine light or malfunction indicator lamp (MIL), is a tell-tale that a computerized engine-management system uses to indicate a malfunction or problem with the vehicle ranging from minor (such as a loose gas cap) to serious (worn spark plugs, engine problems or a faulty oil valve, etc.).