Porsche Engine Management Induction System Air Metering TYPE

911 Naturally Aspirated Engines ONLY

1965-1967 911 (911 and S): Carburetors

1968-1973 911 (T, E, S & RS): Carburetors or Mechanical Injections

1973.5-1983 911 (SC): Bosch CIS Fuel Injection

1984-1989 911 (Carrera): Bosch Motronic system with Barn Door style Air Flow Meter

1989-1994 911 (964): Bosch Motronic ME2.1 system with Barn Door style Air Flow Meter

1995-1998 911 (993): Bosch Motronic system ME2.1 & 5.2 with Hot Film MAF sensor

1999-2004 911 (996): Bosch Motronic ME5.2.2, 7.2 & 7.8 with Hot Film MAF sensor

2005-2008 (997-1): Bosch Motronic ME7.8 & 7.8_40 with Hot Film MAF sensor

2009-2011 (997-2): Siemens Continental SDI 3.1 DFI with Hot Film MAF sensor

2012-2016 911 (991-1): Siemens Continental SDI 9.0 DFI with Intake MAP sensor

2017-2019 911 (991-2): Siemens Continental SDI 21.2 DFI with Intake MAP sensor

2020-2022 911 (992): Bosch (System???) DFI with Intake MAP sensor