Description
Improve throttle response and driving dynamics in your Alfa Romeo 159 (939_) 1.9 JTDM 16V (engine codes 939AXC1B, 939AXC12) with the advanced DTE PedalBox Accelerator Pedal Tuning module.
The 1.9 JTDM 16V diesel engine delivers strong torque and refined turbo performance, but factory electronic throttle mapping can feel slightly delayed during acceleration. The DTE PedalBox optimizes the accelerator pedal signal in real time before it reaches the ECU, providing:
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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 smoother drivability
The PedalBox does not increase horsepower and does not modify ECU software. It enhances throttle sensitivity only, ensuring full compatibility with OEM engine management and safety systems.
✅ 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 needed
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Fully removable and reversible
Installation typically takes just a few minutes.
✅ Selectable Driving Modes
Customize throttle characteristics to suit your preference:
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City Mode – smooth and progressive response
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Sport Mode – sharper, more dynamic acceleration
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Sport Plus Mode – maximum throttle responsiveness
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Standard Mode – restores factory throttle mapping
Each mode includes fine adjustment levels. The integrated memory function saves your last selected setting when restarting the vehicle.
Manufactured in Germany by DTE Systems, the PedalBox ensures premium build quality and seamless integration with your Alfa Romeo 159’s electronic throttle system.



