FIELD: engines and pumps.
SUBSTANCE: present invention relates to starting internal combustion engines with direct injection. Invention includes the following: in response to an indication of high pressure fuel pump degradation, fuel may be injected during an intake stroke, rather than a compression stroke, for a selected number of combustion events since the engine restart. By shifting to an intake stroke injection, the engine may be started even when sufficient fuel rail pressures are not available.
EFFECT: to increase the reliability of starting a cold engine.
10 cl, 6 dwg
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