Knock/Charging Pressure Control

The knock/charging pressure control includes a self monitoring system. If a defect has been found, the engine will operate on a safety system (basic turbo boost pressure up to about 4 psi overpressure and 6° retarded on timing).

Defect will read out only after a test drive without switching off the ignition. A defect stored in memory is erased when ignition is switched off.