Variant 1
ECU- Catalog engine
- 3600 329HP
- Engine code
- A14NEL
- Controller brand
- DELCO
- ECU
- E78 B
- Stock power
- 329 HP
- ECU SW
- 12655492
- ECU HW
- 12647136
CHEVROLET · E78 B ECU
CHEVROLET TRAILBLAZER E78 B tuning files
Tuning file coverage for the CHEVROLET TRAILBLAZER running the E78 B ECU. The matched variants sit between 329 and 329 HP from the factory. Stage 1 and Stage 2 are the safe starting points for this platform. Each file is tied to the precise software on your car and checked before it goes out.
Available solutions
Applicable work for the E78 B on this vehicle. The available set firms up once the exact engine and software are known.
Engine variants & ECU software
1 distinct variant for the CHEVROLET TRAILBLAZER on the E78 B ECU. Reference the engine and controller software when you upload.
Related vehicles
Other vehicles built on the E78 B controller or the same engine — handy when a platform spans several models and makes.
Questions, answered.
Which tuning solutions are available for the CHEVROLET TRAILBLAZER on the E78 B?
Stage 1, Stage 2. The exact set depends on the specific engine and software version.
Do you cover the E78 B ECU software on this model?
Yes — the CHEVROLET TRAILBLAZER on the E78 B 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.