Control apparatus for internal combustion engine
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United States of America Patent
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Aug 21, 2007
Grant Date -
Jan 25, 2007
app pub date -
Jun 16, 2006
filing date -
Jul 25, 2005
priority date (Note) -
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Abstract
An engine ECU executes a program including the steps of: when the port fuel injection ratio is 100% (YES at S200), sensing the engine coolant temperature THW (S210); when the engine coolant temperature THW is higher than a threshold value (YES at S220), monitoring fuel pressure P in a high-pressure delivery pipe (S230); and when fuel pressure P rises by the received heat (YES at S240), identifying that there is no error at the high-pressure fuel system.
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