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  2. Digifant engine management system - Wikipedia

    en.wikipedia.org/wiki/Digifant_Engine_Management...

    A Digifant II DF-1 Engine Control Unit used in '91 Volkswagen Golf Cabriolet with 2E engine. Digifant is an Engine Management System operated by an Engine Control Unit that actuates outputs, such as fuel injection and ignition systems, using information derived from sensor inputs, such as engine speed, exhaust oxygen and intake air flow. [1]

  3. Vapor lock - Wikipedia

    en.wikipedia.org/wiki/Vapor_lock

    Vapor lock is a problem caused by liquid fuel changing state to vapor while still in the fuel delivery system of gasoline-fueled internal combustion engines.This disrupts the operation of the fuel pump, causing loss of feed pressure to the carburetor or fuel injection system, resulting in transient loss of power or complete stalling.

  4. Dieseling - Wikipedia

    en.wikipedia.org/wiki/Dieseling

    The dieseling phenomenon occurs not just because the compression ratio is sufficient to cause auto-ignition of the fuel, but also because a hot spot inside the cylinder (spark plug electrode, combustion-chamber/valve edge or even excess carbon) starts combustion. An automobile engine that is dieseling will typically sputter, then gradually stop ...

  5. List of discontinued Volkswagen Group diesel engines

    en.wikipedia.org/wiki/List_of_discontinued...

    (Common rail system) Low-pressure fuel lift pump mounted underneath the car turns on only when starter is being operated (when cranking); after that an electromagnetic valve bypass the pump. It uses a gear-type lift pump mounted on the passenger-side cylinder head driven by the camshaft; it is used to supply the high-pressure pump with ...

  6. Fuel starvation - Wikipedia

    en.wikipedia.org/wiki/Fuel_starvation

    British Airways Flight 38 crash-landed at London Heathrow in 2008 after its fuel lines became clogged with ice crystals.. In an internal combustion engine, fuel starvation is the failure of the fuel system to supply sufficient fuel to allow the engine to run properly, for example due to blockage, vapor lock, contamination by water, malfunction of the fuel pump or incorrect operation, leading ...

  7. List of discontinued Volkswagen Group petrol engines

    en.wikipedia.org/wiki/List_of_discontinued...

    common-rail electronic multi-point Fuel Stratified Injection (FSI) homogeneous direct petrol injection, up to 110 bar high-pressure fuel pump, stratified-charge combustion at partial load aspiration two-position tumble flap in the intake manifold controlling the turbulence exhaust up to 35% exhaust gas recirculation, NOx storage-type catalytic ...

  8. List of North American Volkswagen engines - Wikipedia

    en.wikipedia.org/wiki/List_of_North_American...

    An all new cylinder head was needed for the Audi-developed Fuel Stratified Injection (FSI), which features cylinder-direct fuel injection straight into the combustion chambers. The result of needing to site both spark plug and fuel injector meant that the former five-valve layout had to be changed to a four-valve-per-cylinder arrangement.

  9. Ultra-low-sulfur diesel - Wikipedia

    en.wikipedia.org/wiki/Ultra-low-sulfur_diesel

    ULSD runs in any engine designed for the ASTM D975 diesel fuel, however, it is known to cause some seals to shrink, [8] and may cause fuel pump failures in Volkswagen TDI engines used in 2006 to pre-2009 models. [citation needed] TDI engines from 2009 and on are designed to use ULSD exclusively; biodiesel blends are reported to prevent that ...

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