Exhaust Gas Recirculation (EGR) System, general information: Notes
WARNING: This page does not describe the selected car, but rather 11 other vehicles, including the 1999 Volkswagen Jetta, 1999 Volkswagen GTI, 1998 Volkswagen Jetta, 1998 Volkswagen GTI, and 1997 Volkswagen Jetta. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
- EGR function/control is checked by the On Board Diagnostic (OBD) program of the Motronic Engine Control Module -J220-.
- Components marked with an asterisk (*) are checked by the On Board Diagnostic (OBD) program, which stores malfunctions in Diagnostic Trouble Code (DTC) Memory:
For model years 1993-1995, see DIAGNOSTIC TROUBLE CODE (DTC) MEMORY, CHECKING
For model years 1996-1999, see ON BOARD DIAGNOSTIC (OBD) - 2.8L VR6, AAA .
- Components marked with a double asterisk (**) are checked by the On Board Diagnostic (OBD) program operating in the Output Diagnostic Test Mode (DTM):
See OUTPUT DIAGNOSTIC TEST MODE (DTM), PERFORMING
For 1996-99, see .
- Always replace sealing rings and gaskets when assembling.
- Vacuum lines and hose connections must be free of leaks.
- Vacuum lines must not be blocked or kinked.