Variant 1
ECU- Catalog engine
- 2000 190HP
- Engine code
- A20NHT
- Controller brand
- DELCO
- ECU
- E39A3
- Stock power
- 190 HP
- ECU SW
- 12661794
- ECU HW
- 12653997
- SW upgrade
- 24106116
BUICK · E39A3 ECU
BUICK EXCELLE E39A3 tuning files
BUICK EXCELLE on the E39A3: matched, calibrated and delivered with care. The matched variants sit between 190 and 190 HP from the factory. For this platform the dependable path begins with Stage 1 and Stage 2. We match the right calibration to your exact software and validate it before delivery.
Available solutions
Applicable work for the E39A3 on this vehicle. The available set firms up once the exact engine and software are known.
Engine variants & ECU software
2 distinct variants for the BUICK EXCELLE on the E39A3 ECU. Reference the engine and controller software when you upload.
Variant 2
ECU- Catalog engine
- 2000 190HP
- Controller brand
- DELCO
- ECU
- E39A3
- Stock power
- 190 HP
- ECU SW
- 12661794
- SW upgrade
- 24107755
Related vehicles
Other vehicles built on the E39A3 controller or the same engine — handy when a platform spans several models and makes.
Questions, answered.
Which tuning solutions are available for the BUICK EXCELLE on the E39A3?
Stage 1, Stage 2. The exact set depends on the specific engine and software version.
Do you cover the E39A3 ECU software on this model?
Yes — the BUICK EXCELLE on the E39A3 ECU is part of the catalog. Upload your original file and it is matched to the right calibration before any work is done.
How is the file delivered?
Through the TuningBay workflow with operator validation and one safe, sensible result per job. Files we deliver, we stand behind.