Emission parameters
The FIAT Fastback has 18 emission parameters.
● Confirmed◆ In testing○ Supported× Not supported
Catalyst inlet temperature Fiat_CATALYST_INLET_T
- Request
22 39 14 - Service 22
DID 3914 - Module
DA10 → 10 - Every
5 s - Testing
Bits 0 to 15 of the reply, 16 bits.
- Formula
(val × 2 ÷ 100 − 40)- Range
- -40 to 900 °C
- Unit
- °C
In testing for 2022 to 2024, 2026. Not supported for 2025.
Distance between DPF regens (last 5 average) Fiat_AVG_DIST_REGENS
- Request
22 38 09 - Service 22
DID 3809 - Module
DA10 → 10 - Every
3600 s - Testing
Bits 0 to 15 of the reply, 16 bits.
- Formula
(val × 10)- Range
- 0 to 10000 km
- Unit
- km
In testing for 2022 to 2024, 2026. Not supported for 2025.
Distance since last DPF regen Fiat_DIST_SINCE_REGEN
- Request
22 38 07 - Service 22
DID 3807 - Module
DA10 → 10 - Every
60 s - Testing
Bits 0 to 23 of the reply, 24 bits.
- Formula
(val ÷ 10)- Range
- 0 to 10000 km
- Unit
- km
In testing for 2022 to 2024, 2026. Not supported for 2025.
DPF differential pressure Fiat_DPF_DIFF_PRESS
- Request
22 18 E2 - Service 22
DID 18E2 - Module
DA10 → 10 - Every
5 s - Testing
Bits 0 to 15 of the reply, 16 bits.
- Formula
(val ÷ 10 − 3276.8)- Range
- -50 to 50 kPa
- Unit
- kPa
In testing for 2022 to 2024, 2026. Not supported for 2025.
DPF flow resistance Fiat_DPF_FLOW_RES_2
- Request
22 18 E8 - Service 22
DID 18E8 - Module
DA10 → 10 - Every
5 s - Testing
Bits 0 to 15 of the reply, 16 bits.
- Formula
(val ÷ 10000)- Range
- 0 to 10
- Unit
- Number
In testing for 2022 to 2026.
DPF inlet temperature Fiat_DPF_INLET_T
- Request
22 18 DE - Service 22
DID 18DE - Module
DA10 → 10 - Every
5 s - Testing
Bits 0 to 15 of the reply, 16 bits.
- Formula
(val × 2 ÷ 100 − 40)- Range
- -40 to 900 °C
- Unit
- °C
In testing for 2022 to 2024, 2026. Not supported for 2025.
DPF outlet temperature Fiat_DPF_OUTLET_T
- Request
22 39 15 - Service 22
DID 3915 - Module
DA10 → 10 - Every
5 s - Testing
Bits 0 to 15 of the reply, 16 bits.
- Formula
(val × 2 ÷ 100 − 40)- Range
- -40 to 900 °C
- Unit
- °C
In testing for 2022 to 2024, 2026. Not supported for 2025.
DPF regen duration (last 5 average) Fiat_AVG_REGEN_DUR
- Request
22 38 0A - Service 22
DID 380A - Module
DA10 → 10 - Every
3600 s - Testing
Bits 0 to 15 of the reply, 16 bits.
- Formula
(val ÷ 60)- Range
- 0 to 30 min
- Unit
- min
In testing for 2022 to 2024, 2026. Not supported for 2025.
DPF regen interrupted count Fiat_REGEN_INTERRUPTEDConfirmed
- Request
22 18 A5 - Service 22
DID 18A5 - Module
DA10 → 10 - Every
60 s - Testing
Bits 0 to 7 of the reply, 8 bits.
- Formula
val- Range
- 0 to 255
- Unit
- Number
Confirmed for 2025. In testing for 2022 to 2024, 2026.
DPF regen progress Fiat_REGEN_PROGRESS
- Request
22 38 0B - Service 22
DID 380B - Module
DA10 → 10 - Every
5 s - Testing
Bits 0 to 15 of the reply, 16 bits.
- Formula
(val × 100 ÷ 65535)- Range
- 0 to 100 %
- Unit
- %
In testing for 2022 to 2024, 2026. Not supported for 2025.
DPF regen temperature (last 5 average) Fiat_AVG_REGEN_TEMP
- Request
22 38 08 - Service 22
DID 3808 - Module
DA10 → 10 - Every
3600 s - Testing
Bits 0 to 15 of the reply, 16 bits.
- Formula
(val ÷ 50 − 40)- Range
- -40 to 900 °C
- Unit
- °C
In testing for 2022 to 2024, 2026. Not supported for 2025.
DPF soot clogging level Fiat_DPF_SOOT_PCT
- Request
22 18 E4 - Service 22
DID 18E4 - Module
DA10 → 10 - Every
30 s - Testing
Bits 0 to 15 of the reply, 16 bits.
- Formula
(val × 1000 ÷ 65535)- Range
- 0 to 100 %
- Unit
- %
In testing for 2022 to 2024, 2026. Not supported for 2025.
Forced regen state Fiat_FORCED_REGENConfirmed
- Request
22 18 EC - Service 22
DID 18EC - Module
DA10 → 10 - Every
5 s - Testing
Bits 0 to 7 of the reply, 8 bits.
- Formula
val- Range
- 0 to 255
- Unit
- Number
Confirmed for 2025. In testing for 2022 to 2024, 2026.
Lambda downstream DPF O2 concentration Fiat_LAMBDA_DPF_DSConfirmed
- Request
22 18 ED - Service 22
DID 18ED - Module
DA10 → 10 - Every
2 s - Testing
Bits 0 to 15 of the reply, 16 bits.
- Formula
(val ÷ 512)- Range
- 0 to 25 %
- Unit
- %
Confirmed for 2025. In testing for 2022 to 2024, 2026.
NOx storage catalyst load Fiat_NOX_LOAD_PCT
- Request
22 39 2B - Service 22
DID 392B - Module
DA10 → 10 - Every
60 s - Testing
Bits 0 to 15 of the reply, 16 bits.
- Formula
(val × 100 ÷ 65535)- Range
- 0 to 100 %
- Unit
- %
In testing for 2022 to 2024, 2026. Not supported for 2025.
Particulate filter flow resistance Fiat_DPF_FLOW_RESConfirmed
- Request
22 18 E8 - Service 22
DID 18E8 - Module
DA10 → 10 - Every
5 s - Testing
Bits 0 to 15 of the reply, 16 bits.
- Formula
(val ÷ 10000)- Range
- 0 to 6.55
- Unit
- Number
Confirmed for 2025. In testing for 2022 to 2024, 2026.
Total DPF regenerations completed Fiat_REGEN_COMPLETED
- Request
22 39 12 - Service 22
DID 3912 - Module
DA10 → 10 - Every
3600 s - Testing
Bits 0 to 15 of the reply, 16 bits.
- Formula
val- Range
- 0 to 65535
- Unit
- Number
In testing for 2022 to 2024, 2026. Not supported for 2025.
Total DPF regenerations started Fiat_REGEN_TOTALConfirmed
- Request
22 18 A4 - Service 22
DID 18A4 - Module
DA10 → 10 - Every
3600 s - Testing
Bits 0 to 15 of the reply, 16 bits.
- Formula
val- Range
- 0 to 65535
- Unit
- Number
Confirmed for 2025. In testing for 2022 to 2024, 2026.
