Diagnostic Trouble Code (DTC) Information
Diagnostic trouble code (DTC) information EFI-416
Condition
Diagnostic trouble code (DTC) EFI-416 is stored if there is a short-circuit to ground in the cable between the AW 50-42 transmission control module (TCM) and the Motronic 4.4 engine control module (ECM) when the ignition is switched on and engine speed is 0 rpm.
Substitute value
None.
Possible source
Short-circuit to ground in signal cable.
Fault symptom[s]
Poorer performance at engine speeds below 3.000 rpm, due to continuous boost pressure reduction.