Peterbilt 389 14.9L I6

ECU Chiptuning Performance Results

Estimated power and torque gains after Stage 1 ECU remapping

Engine power

Power hp

+79 hp
Original 394 hp
Stage 1 473 hp
Gain +79 hp

Estimated Stage 1 gains are calculated from stock values using an approximate 20% increase. Actual performance improvements may vary depending on vehicle condition, fuel quality, hardware configuration and operating environment.

To order chip tuning, contact us
Price: €0.00
Tax included

Chip tuning for the Peterbilt 389 14.9L I6 involves recalibrating the engine’s electronic control unit (ECU) to adapt its operation to specific operating conditions and truck tasks. For Peterbilt trucks equipped with the 14.9L I6 engine, controlled by a Motorola CM871 ECU with a Micro ECU processor, this is particularly relevant given the significant loads the equipment experiences during operation. ECU reprogramming is a complex process requiring in-depth knowledge and experience.

We analyze current settings, identify bottlenecks, and adjust engine operating parameters such as the fuel map, ignition timing, and boost pressure. The goal is to achieve an optimal balance between fuel economy, engine life, and performance. For trucks like the Peterbilt 389, an important aspect is the ability to disable environmental control systems such as AdBlue, DPF, and EGR, which reduces operating costs and avoids costly repairs.

Furthermore, chip tuning allows the removal of errors and limitations programmed into the ECU by the manufacturer, unlocking the engine’s potential. Optimizing engine operation is aimed at improving its efficiency and reliability, which is especially important for equipment operating in harsh conditions. We strive for stable engine operation across a wide range of loads and temperatures, ensuring smooth operation and longevity.

AutoChip.lv guarantees high-quality ECU reprogramming, taking into account all the features of the Peterbilt 389, preserving engine life and ensuring its reliable operation. Chip tuning for the Peterbilt 389 14.9L I6 is an investment in the durability and economy of your truck.

Specification

Power (KW) 294
Power (HP) 394
Torque (Nm) Torque (Nm)
Power (PS) 400
ECU Brand Motorola
ECU Version CM871
ECU Micro ECU Micro
Tools KESS3 compatible Powergate not compatible
Connection OBD available
Year 2008
Type Trucks

Choose your vehicle

To view the chip tuning options available for your vehicle, select the make, model, year and engine.