P30xx
Fuel, air metering and auxiliary emission controls
General fuel and air measurement, plus emission-control components that do not fall into a more specific group.
No open-source descriptions exist for this system, so its codes are read from their structure.
Mixed: manufacturer-specific and standardised. Treat as manufacturer-specific unless a specific explanation is available.
P3000
P3001
P3002
P3003
P3004
P3005
P3006
P3007
P3008
P3009
P300A
P300B
P300C
P300D
P300E
P300F
P3010
P3011
P3012
P3013
P3014
P3015
P3016
P3017
P3018
P3019
P301A
P301B
P301C
P301D
P301E
P301F
P3020
P3021
P3022
P3023
P3024
P3025
P3026
P3027
P3028
P3029
P302A
P302B
P302C
P302D
P302E
P302F
P3030
P3031
P3032
P3033
P3034
P3035
P3036
P3037
P3038
P3039
P303A
P303B
P303C
P303D
P303E
P303F
P3040
P3041
P3042
P3043
P3044
P3045
P3046
P3047
P3048
P3049
P304A
P304B
P304C
P304D
P304E
P304F
P3050
P3051
P3052
P3053
P3054
P3055
P3056
P3057
P3058
P3059
P305A
P305B
P305C
P305D
P305E
P305F
P3060
P3061
P3062
P3063
P3064
P3065
P3066
P3067
P3068
P3069
P306A
P306B
P306C
P306D
P306E
P306F
P3070
P3071
P3072
P3073
P3074
P3075
P3076
P3077
P3078
P3079
P307A
P307B
P307C
P307D
P307E
P307F
P3080
P3081
P3082
P3083
P3084
P3085
P3086
P3087
P3088
P3089
P308A
P308B
P308C
P308D
P308E
P308F
P3090
P3091
P3092
P3093
P3094
P3095
P3096
P3097
P3098
P3099
P309A
P309B
P309C
P309D
P309E
P309F
P30A0
P30A1
P30A2
P30A3
P30A4
P30A5
P30A6
P30A7
P30A8
P30A9
P30AA
P30AB
P30AC
P30AD
P30AE
P30AF
P30B0
P30B1
P30B2
P30B3
P30B4
P30B5
P30B6
P30B7
P30B8
P30B9
P30BA
P30BB
P30BC
P30BD
P30BE
P30BF
P30C0
P30C1
P30C2
P30C3
P30C4
P30C5
P30C6
P30C7
P30C8
P30C9
P30CA
P30CB
P30CC
P30CD
P30CE
P30CF
P30D0
P30D1
P30D2
P30D3
P30D4
P30D5
P30D6
P30D7
P30D8
P30D9
P30DA
P30DB
P30DC
P30DD
P30DE
P30DF
P30E0
P30E1
P30E2
P30E3
P30E4
P30E5
P30E6
P30E7
P30E8
P30E9
P30EA
P30EB
P30EC
P30ED
P30EE
P30EF
P30F0
P30F1
P30F2
P30F3
P30F4
P30F5
P30F6
P30F7
P30F8
P30F9
P30FA
P30FB
P30FC
P30FD
P30FE
P30FF
Read this code from your own car
Plug an ELM327 adapter into the OBD-II port under the dashboard. Pin16 reads every stored, pending and permanent code, explains each one like this page does — offline, with no account — and shows what the car recorded when the fault was set.