The G4X FuryX is the only wire-in ECU in Link Engine Management’s G4X range with an onboard wideband lambda controller. A Bosch LSU 4.9 controller integrates directly into the ECU, eliminating the need for a separate CAN Lambda module — one fewer device to mount, wire, and power. The FuryX carries the same E-throttle, traction control, cruise control, dual CAN, and full gear shift capability as the XtremeX, but trades 2 ignition outputs for the integrated lambda circuit, limiting sequential drive to 6 cylinders or 3 rotors. For any 4-cylinder or 6-cylinder build where eliminating an external wideband simplifies the harness, the FuryX is the cleaner solution.
Like all G4X wire-in ECUs, the FuryX supports high-impedance (saturated) injectors only. Peak-and-hold (low-impedance) injectors are not compatible.
Technical Specifications
| Property | Value |
|---|---|
| SKU | 122-4000 |
| Platform | G4X |
| Connectors | Two × 34-pin AMP Superseal waterproof — Connector A (TKA kit) + Connector B (TKB kit), sold separately |
| Injection drives | 8 (high-impedance / saturated injectors only) |
| Ignition drivers | 6 (maximum 6 cylinders / 3 rotors sequential) |
| Auxiliary outputs | 10 |
| Analogue voltage inputs | 9 |
| Analogue temperature inputs | 4 |
| Digital inputs | 8 (10 when CAN bus 2 unused) |
| Trigger inputs | 2 |
| Knock inputs | 2 |
| Sensor power supply | +5 V and +8 V |
| Onboard wideband lambda | 1 × Bosch LSU 4.9 (direct sensor connection) |
| E-throttle / DBW | 1 channel (gear-shift throttle blip supported) |
| CAN bus | 2 |
| Serial (RS232) | 1 |
| USB tuning port | 1 (PCLink) |
| Supply voltage | 8–22 V |
| Operating temperature | −30°C to +90°C ambient |
| Onboard data logging | 512 MB, 32-bit, up to 250 channels |
| Max logging rate | 100 kSamples/sec (1 kHz per channel max) |
| Dimensions | 185 × 130 × 40 mm |
| Weight | 680 g |
| Software | PCLink (free download, no subscription) |
Engine Configurations Supported
| Configuration | Capability |
|---|---|
| Sequential injection + direct spark | Up to 6 cylinders / 3 rotors |
| Batch fire | Up to 12 cylinders |
| Wasted spark | 2–12 cylinders |
| VVT cam control | Up to 4 cams, independent closed-loop |
| Odd-fire engines | Supported |
| 2-stroke engines | Supported |
What You Can Do With It
- Run closed-loop lambda control using the onboard Bosch LSU 4.9 — connect the sensor directly to the FuryX without an external controller box
- Log wideband AFR through the ECU’s native 512 MB logger at up to 1 kHz — more accurate AFR history than a 0–5 V analogue signal from an external unit
- Control drive-by-wire throttle bodies with gear-shift throttle blip
- Configure wheel-slip-based traction control using CAN wheel speed data
- Enable cruise control for road use or endurance motorsport
- Activate full gear shift control with flat-shift, ignition cut, and fuel cut for sequential gearboxes
- Map up to 4 independent closed-loop VVT cams
- Monitor and correct knock on two independent channels
- Distribute CAN data across two buses — dash on CAN 1, PDM or gearbox controller on CAN 2
Why 6 Ignition Outputs?
The FuryX integrates the Bosch LSU 4.9 wideband lambda controller within the same compact 185 × 130 × 40 mm housing as the XtremeX. Fitting this circuit within the same enclosure required configuring the FuryX with 6 rather than 8 ignition driver channels. For 4-cylinder and 6-cylinder builds — and up to 3-rotor Wankel engines — 6 ignition outputs is never a limitation. For engines requiring 7 or 8 independent ignition channels, the XtremeX is the correct choice.
G4X Family Comparison
| Model | Inj | Ign | Aux | Analog In | CAN | Key additional features |
|---|---|---|---|---|---|---|
| AtomX | 4 | 4 | 4 | 3 | 1 | Open-loop boost, knock |
| MonsoonX | 4 | 4 | 6 | 4 | 1 | + VVT (2 cams), closed-loop boost, launch, anti-lag |
| StormX | 8 | 8 | 8 | 8 | 1 | + Stepper idle, gear shift, trigger oscilloscope, 4-cam VVT |
| XtremeX | 8 | 8 | 10 | 11 | 2 | + E-throttle, traction control, cruise control |
| FuryX | 8 | 6 | 10 | 9 | 2 | + Onboard Bosch LSU 4.9 wideband lambda |
All G4X models share the same microcontroller and PCLink software. No separate licence tiers.
Required Accessories
- LinkECU Connector A Kit — TKA 34-pin AMP Superseal connector kit
- LinkECU Connector B Kit — TKB 34-pin AMP Superseal connector kit
- LinkECU Knock Sensor with Loom (KNSB) — wideband piezo knock sensor
Note: The LinkECU CAN Lambda Controller is not required — the FuryX has an onboard lambda controller.
Frequently Asked Questions
Does the FuryX require an external wideband lambda controller?
No. The FuryX has an onboard digital wideband controller compatible with the Bosch LSU 4.9 sensor. Connect the sensor directly to the FuryX wiring harness — no additional module, no separate power feed, no additional CAN address to configure. Wideband data logs through the ECU’s internal storage at full 1 kHz resolution.
Why does the FuryX have only 6 ignition outputs?
The onboard Bosch LSU 4.9 wideband lambda controller integrates within the same housing as the XtremeX. Fitting this circuit required configuring the FuryX with 6 rather than 8 ignition outputs. For four-cylinder and six-cylinder builds — and up to 3-rotor Wankel engines — 6 ignition outputs is never a limitation. For 7 or 8 cylinder sequential ignition, the XtremeX is the correct choice.
Can the FuryX run a turbocharged 4-cylinder with E-throttle and traction control?
Yes. The FuryX supports all features needed: 8 injection drives, 6 ignition outputs, onboard wideband, E-throttle with gear-shift throttle blip, traction control, launch control, anti-lag, closed-loop boost control, gear shift control, 4-cam VVT, and 512 MB data logging at 1 kHz. It is well-suited to this application profile.
FuryX or XtremeX — which is right for my build?
For 7- or 8-cylinder sequential ignition, choose the XtremeX — the FuryX cannot run 7 or 8 cylinder sequential ignition. For 6 cylinders or fewer with no external wideband installed, the FuryX eliminates a separate lambda controller and simplifies the loom. If you already have an external wideband calibrated and installed, the XtremeX is €200 less and provides 2 more analogue inputs.
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