Affected Component: FUEL SYSTEM, GASOLINE

Date Published
JAN 23, 2014
NHTSA TSB #
10228391
TSB Document
Summary
The fuel metering valve of the high-pressure fuel pump is controlled by a specific on/off ratio. If there is a low system voltage, the on/off ratio may not be enough to keep the fuel metering valve constant in all areas. In such a situation, the fuel metering valve is deactivated and the high-pressure fuel pump switches to full supply mode. Because the increased rail pressure does not match the respective driving situation, the DTC appears.