Possible Causes
NOTE:
Low pressure EGR differential pressure sensor rationality check, pressure below low threshold (-20hPa)
- The powertrain control module measured a signal that remains low when transitions are expected
- Other low pressure EGR related DTCs
- Low pressure EGR system blockage
- Low pressure EGR valve mechanical integrity
- Low pressure EGR differential pressure sensor signal circuit short circuit to ground
- Connector is disconnected, connector pin is backed out, connector pin corrosion
- Low pressure EGR differential pressure sensor failure