Knock/Charging Pressure Control

The knock/charging pressure system includes a self-monitoring system, which can recognize a defect with the help of a test adapter. The defect is seen as a blink code, similar to morse code.

If a defect has been found, the engine will operate on a safety system (basic turbo boast pressure up to about 4 psi over - pressure and 6° later on timing. A defect stored in memory is erased when ignition is switched off. For this reason, the defect must read out directly after a test drive without switching off the ignition.