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General Motors Diagnostic Codes, Trouble Codes and Descriptions. Listed by Year.

WesTech Auto

Diagnostic Codes

General Motors

Vehicles Listed by Year

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Year Eng Description
1986 1.8L 1986 1.8L Multi Port Fuel Injection, VIN J
1986 1.8L 1986 1.8L Throttle Body Injection, VIN 0
1986 2.0L 1986 2.0L Throttle Body Injection, VIN P
1986 2.5L 1986 2.5L Throttle Body Injection, VIN 2
1986 2.8L 1986 2.8L Carburetor, VIN X
1986 3.8L 1986 3.8L Fuel Injection, VIN B
1986-1987 3.8L 1986-1987 3.8L Carburetor, VIN A
1986-1987 4.1L 1986-1987 4.1L Fuel Injection, VIN 8
1986-1987 5.0L 1986-1987 5.0L Carburetor, VIN 9
1986-1988 2.5L 1986-1988 2.5L Throttle Body Injection, VIN U
1986-1988 2.5L 1986-1988 2.5L Throttle Body Injection, VIN R
1986-1988 2.8L 1986-1988 2.8L Multi Port Fuel Injection, VIN 9
1986-1988 3.0L 1986-1988 3.0L Multi Port Fuel Injection, VIN L
1986-1988 3.8L 1986-1988 3.8L Fuel Injection, VIN 7
1986-1988 3.8L 1986-1988 3.8L Fuel Injection, VIN 3
1986-1988 5.0L 1986-1988 5.0L Carburetor, VIN H
1986-1988 5.0L 1986-1988 5.0L Carburetor, VIN G
1986-1988 5.7L 1986-1988 5.7L Fuel Injection, VIN 8
1986-1988 5.7L 1986-1988 5.7L Carburetor, VIN 6
1986-1989 2.8L 1986-1989 2.8L Multi Port Fuel Injection, VIN W
1986-1989 2.8L 1986-1989 2.8L Multi Port Fuel Injection, VIN S
1986-1989 5.0L 1986-1989 5.0L Fuel Injection, VIN F
1986-1990 4.3L 1986-1990 4.3L Throttle Body Injection, VIN Z
1987-1988 2.0L 1987-1988 2.0L Throttle Body Injection, VIN 1
1987-1988 4.1L 1987-1988 4.1L Multi Port Fuel Injection, VIN 7
1987-1990 2.0L 1987-1990 2.0L Multi Port Fuel Injection, VIN M
1987-1990 5.0L 1987-1990 5.0L Carburetor, VIN Y
1987-1991 2.0L 1987-1991 2.0L Throttle Body Injection, VIN K
1988-1989 2.3L 1988-1989 2.3L Multi Port Fuel Injection, VIN D
1988-1989 3.1L 1988-1989 3.1L Multi Port Fuel Injection, VIN T
1988-1989 4.5L 1988-1989 4.5L Fuel Injection, VIN 5
1988-1990 3.8L 1988-1990 3.8L Fuel Injection, VIN C
1988-1993 5.0L 1988-1993 5.0L Throttle Body Injection, VIN E
1989 2.0L 1989 2.0L Throttle Body Injection, VIN 1
1989 2.3L 1989 2.3L Multi Port Fuel Injection, VIN A
1989 3.1L 1989 3.1L Multi Port Fuel Injection, VIN V
1989 5.7L 1989 5.7L Fuel Injection, VIN 8
1989-1990 5.7L 1989-1990 5.7L Throttle Body Injection, VIN 7
1989-1991 2.5L 1989-1991 2.5L Throttle Body Injection, VIN R
1989-1991 3.3L 1989-1991 3.3L Multi Port Fuel Injection, VIN N
1990 2.3L 1990 2.3L Multi Port Fuel Injection, VIN D
1990 2.3L 1990 2.3L Multi Port Fuel Injection, VIN A
1990 3.8L 1990 3.8L Fuel Injection, VIN L
1990 4.5L 1990 4.5L Fuel Injection, VIN 3
1990 5.7L 1990 5.7L Fuel Injection, VIN J
1990-1991 2.2L 1990-1991 2.2L Throttle Body Injection, VIN G
1990-1991 3.1L 1990-1991 3.1L Multi Port Fuel Injection, VIN V
1990-1991 3.1L 1990-1991 3.1L Multi Port Fuel Injection, VIN T (Except Camaro & Firebird)
1990-1991 3.1L 1990-1991 3.1L Multi Port Fuel Injection, VIN T (Camaro & Firebird)
1990-1991 5.0L 1990-1991 5.0L Fuel Injection, VIN F
1990-1991 5.7L 1990-1991 5.7L Fuel Injection, VIN 8
1991 2.3L 1991 2.3L Multi Port Fuel Injection, VIN D
1991 2.3L 1991 2.3L Multi Port Fuel Injection, VIN A
1991 3.8L 1991 3.8L Fuel Injection, VIN C
1991 3.8L 1991 3.8L Fuel Injection, VIN L
1991 4.9L 1991 4.9L Fuel Injection, VIN B
1991 5.7L 1991 5.7L Throttle Body Injection, VIN 7
1991 5.7L 1991 5.7L Fuel Injection, VIN J
1991-1992 1.9L 1991-1992 1.9L Throttle Body Injection, VIN 9
1991-1992 1.9L 1991-1992 1.9L Single Port Fuel Injection, VIN 7
1991-1992 3.4L 1991-1992 3.4L Multi Port Fuel Injection, VIN X
1992 2.0L 1992 2.0L Multi Port Fuel Injection, VIN H
1992 2.2L 1992 2.2L Fuel Injection, VIN 4
1992 2.3L 1992 2.3L Multi Port Fuel Injection, VIN D
1992 2.3L 1992 2.3L Multi Port Fuel Injection, VIN A
1992 2.3L 1992 2.3L Multi Port Fuel Injection, VIN 3
1992 2.5L 1992 2.5L Throttle Body Injection, VIN R
1992 3.1L 1992 3.1L Multi Port Fuel Injection, VIN T (Except Camaro & Firebird)
1992 3.1L 1992 3.1L Multi Port Fuel Injection, VIN T (Camaro & Firebird)
1992 5.0L 1992 5.0L Fuel Injection, VIN F
1992 5.7L 1992 5.7L Throttle Body Injection, VIN 7
1992 5.7L 1992 5.7L Fuel Injection, VIN J
1992 5.7L 1992 5.7L Fuel Injection, VIN 8
1992-1993 3.3L 1992-1993 3.3L Multi Port Fuel Injection, VIN N
1992-1993 4.3L 1992-1993 4.3L Throttle Body Injection, VIN Z
1992-1993 4.9L 1992-1993 4.9L Fuel Injection, VIN B
1992-1993 5.7L 1992-1993 5.7L Fuel Injection, VIN P
1992-1995 3.8L 1992-1995 3.8L Fuel Injection, VIN L
1993 2.0L 1993 2.0L Multi Port Fuel Injection, VIN H
1993 2.2L 1993 2.2L Fuel Injection, VIN 4
1993 2.3L 1993 2.3L Multi Port Fuel Injection, VIN D
1993 2.3L 1993 2.3L Multi Port Fuel Injection, VIN A
1993 2.3L 1993 2.3L Multi Port Fuel Injection, VIN 3
1993 3.1L 1993 3.1L Fuel Injection, VIN T
1993 5.7L 1993 5.7L Throttle Body Injection, VIN 7
1993 5.7L 1993 5.7L Fuel Injection, VIN J
1993-1994 1.9L 1993-1994 1.9L Throttle Body Injection, VIN 9
1993-1995 1.9L 1993-1995 1.9L Fuel Injection, VIN 7
1993-1995 3.4L 1993-1995 3.4L Fuel Injection, VIN X
1993-1995 3.4L 1993-1995 3.4L Fuel Injection, VIN S
1993-1995 4.6L 1993-1995 4.6L Fuel Injection, VIN Y
1993-1995 4.6L 1993-1995 4.6L Fuel Injection, VIN 9
1994 2.0L 1994 2.0L Multi Port Fuel Injection, VIN H
1994 2.2L 1994 2.2L Fuel Injection, VIN 4
1994 2.3L 1994 2.3L Multi Port Fuel Injection, VIN D
1994 2.3L 1994 2.3L Multi Port Fuel Injection, VIN A
1994 2.3L 1994 2.3L Multi Port Fuel Injection, VIN 3
1994 3.1L 1994 3.1L Multi Port Fuel Injection, VIN T
1994 5.7L 1994 5.7L Fuel Injection, VIN P
1994-1995 3.1L 1994-1995 3.1L Fuel Injection, VIN M
1994-1995 4.3L 1994-1995 4.3L Fuel Injection, VIN W
1994-1995 4.9L 1994-1995 4.9L Fuel Injection, VIN B
1994-1995 5.7L 1994-1995 5.7L Fuel Injection, VIN J
1995 1.9L 1995 1.9L Throttle Body Injection, VIN 8
1995 2.2L 1995 2.2L Fuel Injection, VIN 4
1995 2.3L 1995 2.3L Multi Port Fuel Injection, VIN D
1995 3.8L 1995 3.8L Fuel Injection, VIN K
1995 4.0L 1995 4.0L Fuel Injection, VIN C
1995 5.7L 1995 5.7L Fuel Injection, VIN P
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