Description
Enhance the throttle response of your Alfa Romeo 159 (939_) 1.9 JTDM 16V (engine codes 939AXF1B, 939AXC1B) with the advanced DTE PedalBox Accelerator Pedal Tuning module.
The 1.9 JTDM 16V diesel engine offers strong turbocharged performance, but factory electronic throttle calibration can feel slightly delayed, especially during initial acceleration. The DTE PedalBox optimizes the accelerator pedal signal in real time before it reaches the ECU, delivering:
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Sharper throttle response
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Faster acceleration feel
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Reduced turbo lag sensation
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Improved pedal precision and drivability
The PedalBox does not increase engine horsepower and does not modify ECU software. It improves throttle sensitivity only, maintaining full compatibility with factory systems and safety features.
✅ Plug-and-Play Installation
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Connects directly to the original accelerator pedal harness
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No wire cutting or splicing required
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No ECU remapping or coding necessary
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Fully removable and reversible
Installation typically takes only a few minutes.
✅ Adjustable Driving Modes
Select the throttle response that suits your driving style:
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City Mode – smooth and progressive response
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Sport Mode – noticeably sharper acceleration
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Sport Plus Mode – maximum responsiveness
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Standard Mode – restores factory throttle mapping
Each mode includes fine-tuning levels. The integrated memory function saves your last selected setting when the vehicle is restarted.
Manufactured in Germany by DTE Systems, the PedalBox ensures premium quality and seamless integration with your Alfa Romeo 159’s electronic throttle system.



