Precision Electronic Throttle Control for Modern EFI Builds
Add modern electronic throttle (e-throttle) to your build with smooth control, flexible tuning, and safety-first logic. The AMP Drive-By-Wire Controller closes the loop between your pedal and throttle body for crisp response, stable idle, and predictable drivability.
This controller is built around the same safety principles used in OEM drive-by-wire systems: redundant sensors, plausibility checks, fault handling, and limp-home behavior—so you can confidently run DBW in performance applications.
Why Drive-By-Wire?
A DBW system replaces the traditional throttle cable with an electronically controlled throttle body and an electronic accelerator pedal. Instead of a direct mechanical linkage, the system reads pedal input and commands the throttle motor accordingly.
That opens the door to features you simply can’t do (or can’t do as cleanly) with a cable throttle—like shaping pedal feel, managing torque with RPM/gear-based limits, and enabling built-in throttle blip strategies for downshift rev-matching.
Why Tuners Choose This Controller
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Closed-loop control with redundancy
Monitors dual pedal and dual TPS channels with plausibility checks and configurable fault handling. Includes a dedicated fault light output and clear fault/status reporting. -
CAN integration when you want it
Integrates cleanly into CAN-based builds (and can be paired with MS3Pro / MegaSquirt setups), without forcing you into deep networking details to get started. -
Customizable throttle mapping
Shape how pedal % translates into throttle opening so the car feels right everywhere (parking lot, mid-corner, full pull). -
Torque management with throttle limits
Add RPM- and gear-based throttle caps to help traction and drivability in lower gears. -
Built-in throttle blip (auto rev-match)
A dedicated feature set for downshift blips with adjustable windows, delays, duration, and blip amount. -
Straightforward calibration & setup
A guided process to capture pedal and throttle sweeps (done key-on / engine-off), with safety behavior if calibration is interrupted. -
Engine-bay ready enclosure
Gasket-sealed, water-resistant enclosure with sealed connectors—mountable inside the cabin or engine bay (away from direct exhaust heat).
Integrated Throttle Blip & Rev-Matching Control
The AMP Drive-By-Wire Controller features a built-in throttle "Blipping System" designed to support rev-matched downshifts in manual transmission applications.
By commanding precise throttle input during downshift events, the system helps match engine RPM to transmission speed, improving shift smoothness, reducing drivetrain shock, and enhancing vehicle stability under braking.
The blip system is fully configurable, allowing adjustment of:
• Brake and clutch activation timing windows
• Blip delay and duration
• Throttle percentage (blip amount)
This flexibility allows tuners to calibrate rev-matching behavior for street, track day, time attack, or road race applications — all without the need for external modules.
Throttle Mapping That Feels OEM—Or Aggressive
DBW isn’t just about making the throttle move—it’s about making the car respond the way you want.
The controller uses a throttle follower approach: you define a curve so pedal position maps to throttle opening. That means you can build:
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A soft, controllable low-pedal zone for idle/parking lots
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A clean linear midrange for predictable modulation
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A steeper top end so wide-open happens when you actually want it
It’s one of the fastest ways to make a high-power car feel “right.”
Torque Management Without Extra Hardware
If you’ve ever tried to calm down a high-torque car in first and second gear, you already know the value of throttle-based torque management.
With throttle limits, you can cap maximum throttle opening by:
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RPM (limit max throttle through parts of the rev range)
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Gear (run tighter limits in lower gears, freer limits up top)
This is especially useful on turbo cars where torque comes in hard, or on high-grip setups where drivability matters just as much as peak power.
Safety & Fault Handling Built In
DBW is a safety-critical system. The AMP DBW Controller is built around core safety behaviors you want on an electronic throttle system:
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Dual-sensor plausibility checking (pedal + throttle)
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Major/minor fault handling strategies
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Limp-home behavior to reduce throttle response if a serious issue is detected
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Fault output support (for a warning lamp) and clear diagnostic reporting
In other words: it’s designed to protect the driver and the engine when something doesn’t look right.
Compatibility & Integration Notes
Pedal Requirements (Important)
This controller is designed to work with safety-critical electronic accelerator pedals that provide two independent position sensor outputs with different slopes. Non-redundant pedals (single-channel) or dual-channel pedals that do not meet safety expectations are not supported and will trigger calibration faults.
Throttle Body Requirements
Supported throttles are those with analog TPS signals. SENT-based throttles are not currently supported.
There is also support for Ford “Half-Scale” TPS behavior (one channel half-scale while the other is full-scale).
ECU Integration Options
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Serial (required for calibration / setup): Use the included M8 serial cable (a USB-to-serial adapter is recommended).
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CAN (optional integration): Connect to an ECU (like MS3Pro / MegaSquirt) for RPM/gear/idle inputs, outbound telemetry, and passthrough tuning support.
Setup & Calibration Overview
A clean DBW install starts with the basics:
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Power & Ground
Use ignition-switched +12V and a clean chassis/engine ground (and fuse the +12V feed). -
Wire the throttle body + pedal
Follow the supported wiring examples for common Bosch / Ford / BMW / GM throttle bodies and pedals. -
Connect to TunerStudio for setup
TunerStudio is the primary interface used to configure settings, tune, and record logs. -
Run calibration (key ON, engine OFF)
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Pedal calibration (closed → WOT sweep)
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Throttle calibration (allow full sweeps to complete)
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Verify safe operation before driving
Confirm smooth pedal %, stable throttle tracking, and proper fault behavior.
CANbus Overview (What You Get)
CAN integration lets your ECU and DBW controller share key data and improves how “connected” the system feels in the tune:
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Optional 11-bit messaging for standard data
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Optional 29-bit MSCAN mode for MegaSquirt passthrough tuning
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Standard outbound messages include pedal/TPS values, reference voltages, supply voltage, motor current, and fault reporting
Frequently Asked Questions
Is CAN required to use the AMP DBW Controller?
No. CAN is supported for ECU integration, but setup/calibration is performed through a serial connection, and the controller can also use a frequency input as an RPM source. CAN becomes especially useful when you want ECU-sourced RPM/gear/idle inputs and standardized CAN telemetry.
Does it come with a pedal and throttle body?
The controller package is centered around the DBW Controller, harnessing, and the serial tuning cable. Pedals and throttle bodies are typically selected based on your vehicle/application.
Will it work with any electronic throttle body?
Not “any.” The controller supports throttles using analog TPS signals (with examples provided for several common OEM throttle styles). SENT throttles are not currently supported. Always confirm the throttle/pedal type before wiring and calibration.
Can I feed a standard analog TPS signal into my ECU?
Yes. The controller provides a TPS output intended to connect to your ECU’s 5V reference, TPS input, and sensor ground so the ECU can read throttle position as a stable analog signal.
What happens if the system detects a serious fault?
It will reduce throttle response (limp-home behavior) and provide fault reporting so you can diagnose the issue safely.