Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information

Condition
Diagnostic trouble code (DTC) ECM-6814 is stored if the relationship between the measured pressure (from the boost pressure sensor) and the calculated boost pressure is greater than a certain value. The fault is diagnosed by the control module when turbocharger (TC) control is active.

Substitute value
Reduced boost pressure.

Possible source
- Air leakage downstream of the turbocharger (TC) (between the turbocharger (TC) and the throttle unit)
- The boost pressure sensor has come loose (measures the atmospheric pressure)
- Defective boost pressure sensor.

Fault symptom[s]
- Poor performance.