- File type
- Chip Tuning
- Brand
- Ford
- Car model
- FIESTA
- Hardware number
- 8V21-12B684-BA
- ECU
- EMS2102
- Software number
- AV21-12A650-BB
- Read with
- KESS V2
- ID.txt150 bytes
- FİESTA EMS2102 ORG524.288 bytes
- FİESTA TUNED524.288 bytes
FORD FIESTA EMS2102 8V21-12B684-BA AV21-12A650-BB TUNED
Chip tuning (stage 1 remap) file for the FORD FIESTA (EMS2102). HW 8V21-12B684-BA / SW AV21-12A650-BB. Read with KESS V2. Instant download after payment.
25,00€
- Instant download — the file is available the moment payment clears.
- Kept in your account — re-download any time from My Account.
- Read from a real unit — listed by the exact hardware and software number.
Need a different version or hardware number? Request the file, we usually source it the same day.
- Imunify360 real-time scanning
Description
A tuned calibration for the Ford Fiesta EMS2102 engine ECU, read with KESS V2. It’s identified by hardware 8V21-12B684-BA and software AV21-12A650-BB. A unit labelled 8V21-12B684-EA is a different hardware version, so check the suffix, and match the AV21-12A650-BB software in your read before writing.
This file changes the engine calibration only. It is not an immo off, so if you searched for EMS2102 immo off, it won’t bypass the immobiliser. For off-road, export or motorsport use only; not road-legal in the EU/UK. Keep your original read as a backup. If you need stock software instead, an 8V21-12B684-BA original dump (software 8V21-12A650-GC) is listed, along with other EMS2102 files and the Fiesta file list.
FORD FIESTA EMS2102 8V21-12B684-BA AV21-12A650-BB TUNED is a chip tuning (stage 1 remap) file for the FORD FIESTA fitted with the EMS2102 engine control unit. It matches hardware number 8V21-12B684-BA and software number AV21-12A650-BB. The file was read with KESS V2 and is supplied exactly as read from the unit, byte for byte.
Typical use: improving power and torque while keeping the engine within safe factory limits. Before writing the file, confirm that the hardware and software numbers printed on your ECU label match the numbers above; writing a file to a unit with different numbers can damage the ECU.
After secure checkout the file is available for instant download from your AutoECUFile account, and it stays there for later downloads. Need another version of AV21-12A650-BB, or a file that is not listed? Send us a file request and we will source it for you.
HW: 8V21-12B684-BA
SW: AV21-12K532-BB
SW upg.: AV21-12A650-BB
STAGE1 TUNED
Specification
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