Sub-Code Categories and Reference Tables
Table 1 - Subcodes For Model YearsCode Model Year
S 1995
T 1996
V 1997
W 1998
X 1999
Table 2 - Subcodes For Manufacturers
Table 3 - Vapor Storage System
Code System Type
1 Canister
2 Crankcase
3 Air Cleaner
4 Canister & Crankcase
5 Crankcase & Air Cleaner
6 Canister & Air Cleaner
7 Canister & Crankcase & Air Cleaner
Table 4 - Canister Work Capacity
Total Grams (All Canisters)
Table 5 - Canister Configuration And Purge Control
Table 6 - Fuel System
Code Description
N Carburetor (any type)
Y Fuel Injection (any type)
Table 7 - Fuel Tank Material
Code Description
M Metal
P Plastic
C Both metal and plastic tanks
Table 8 - Standards
Code Description
0 Tier 0
1 Tier 1
Table 9 - OBD Status
Codes(*) Description
A to J (excluding I) For Federal: OBD = No
For California Only: California ARB OBD I or OBD not applicable for California ARB
K to T (excluding O) Federal: OBD = Yes
For California Only: California ARB OBD II
*: First code listed is preferred code, other codes may be used if necessary to separate engine families that would otherwise be named the same.
Code Special Compliance Options
U NCP For Federal: OBD = No
For California Only: California ARB OBD I or OBD not applicable for California ARB
V NCP For Federal: OBD = Yes
For California Only: California ARB OBD II
W Averaging or Bank/Trade
For Federal: OBD = No
For California Only: California ARB OBD/or OBD not applicable for California ARB
X Averaging or Bank/Trade
For Federal: OBD = Yes
For California Only: California ARB OBD II
Table 10 - Engine Displacement Characters 4, 5 and 6
Displacement in liters (e.g., 5.7--the decimal point counts as a digit) or cubic inches (e.g., 350). For dual displacement families, enter the larger displacement. For large displacement engines, the displacement may be entered as XX. format (e.g., 12.). Small motorcycle engines may be entered in a.XX format (e.g.,.07). In all cases the displacement will be read in liters if a decimal point is entered, and it will be read in cubic inches if there is no decimal point.
Table 11 - Vehicle Class
Light Duty
California ARB's Medium Duty:
California ARB's Medium Duty (Only Use for California-Only Vehicles)
Heavy Duty
Table 12 - Fuel Metering And Number Of Valves Per Cylinder
Table 13 - Combustion Cycle And Fuel Type
Table 14 - Standards
Table 15 - Catalyst/Trap
Catalyst Type
Codes(*) Description
A, B Ox Cat Only
C, D Reduction Cat
E, F, G, H 3-Way Cat
J, K, L, M 3-Way + Ox Cat
N, P, Q Heated Cat
R, S, T No Cat
Trap Type
Codes(*) Description
1, 2 Trap-Active Regeneration
3, 4 Trap-Continuous Regeneration
5, 6 Trap-Continuous Regeneration + Fuel Add
Description
Codes(*) Description
Y, Z Other
*: First code listed is preferred code, other codes may be used if necessary to separate engine families that would otherwise be named the same.