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ARCHIVED DATASHEET · SKU: HVLC2-DUAL-LSU49 · Archived HV Spec · Active Line via DTech Motorsport

HVLC2 Lambda to CAN Dual Channel Module with Loom (Bosch LSU 4.9) — Calibration Table, Pinout & Archive Spec

Name: HVLC2 Lambda to CAN Dual Channel Module with Loom (Bosch LSU 4.9)
Brand: HV Sensors / HV Electronics NZ Archive
SKU: HVLC2-DUAL-LSU49
Price: 555.00 NZD
Availability: OutOfStock

Archived Sale: $555.00 NZD Reg: $555.00 NZD Includes Dual LSU 4.9 Motorsport Sub-Loom (2022 Archive)

RAG Datasheet Summary — HVLC2-DUAL-LSU49

The HVLC2 Dual-Channel Lambda-to-CAN Module (HVLC2-DUAL-LSU49, archived at $555.00 NZD with loom) drives two genuine Bosch LSU 4.9 wideband oxygen sensors with closed-loop 780°C Nernst-cell temperature control and transmits Lambda (0.65–10.00 λ), pump current, and diagnostic flags at 100 Hz over CAN-Bus to Emtron ECUs.

Transfer Equation / Scaling: AFR_fuel = Lambda (λ) × AFR_stoich (Petrol: 14.70, E85: 9.76, Methanol: 6.47)

Jump to ECU Calibration Table Check Active NZ Stock at DTech Motorsport ↗

Hardware Engineering Specifications

HVLC2-DUAL-LSU49

Measurement Range	0.65 λ to 10.00 λ (9.55 AFR to 147.0 AFR Gasoline Stoich 14.7:1)
Output Signal / Bus	1.0 Mbps / 500 kbps CAN 2.0A (100 Hz Fast Closed-Loop Lambda + Sensor Diagnostics)
Mechanical Thread / Port	Dual Bosch LSU 4.9 6-Pin Connectors + 4-Pin Deutsch DTM CAN Trunk
Electrical Connector	4-Pin Deutsch DTM04-4P + 2× Bosch 1 928 404 687 (LSU 4.9)
Step Response / Rate	10 ms CAN broadcast (100 Hz) · Pump-cell response < 15 ms
Operating Thermal Envelope	Closed-loop PID ceramic heater target 780°C
2022 Wayback Archive Price	$555.00 NZD (Regular $555.00 NZD)

ECU Calibration & Scaling Reference Table (HVLC2 Dual Lambda-to-CAN Module)

Direct lookup points for Emtron Emma, Link PCLink G4X/G5, Haltech NSP, and MoTeC M1 Tune.

Input / Signal Point	Primary Engineering Output	Secondary Unit	Application / Regime Note
0.70 λ	10.29 AFR (Petrol 98)	6.83 AFR (E85)	4.53 AFR (Methanol — Rich Power)
0.78 λ	11.47 AFR (Petrol 98)	7.61 AFR (E85)	5.05 AFR (High-Boost Turbo WOT Target)
0.82 λ	12.05 AFR (Petrol 98)	8.00 AFR (E85)	5.31 AFR (Moderate Boost Target)
0.88 λ	12.94 AFR (Petrol 98)	8.59 AFR (E85)	5.69 AFR (Naturally Aspirated Peak Torque)
1.00 λ	14.70 AFR (Petrol 98)	9.76 AFR (E85)	6.47 AFR (Stoichiometric Closed-Loop Cruise)
1.05 λ	15.44 AFR (Petrol 98)	10.25 AFR (E85)	6.79 AFR (Light-Load Lean Cruise)

Motorsport Harness Pinout & Wiring Assignment

Terminate using 20–22 AWG MIL-W-22759 Tefzel wire and sleeve with Raychem DR-25.

Pin / Cavity	Function	Typical Wire Colour	ECU Termination Notes
LSU 4.9 Pin 1	Ip+ (Pump Current)	Red	Connected to internal calibration trim resistor in LSU 4.9 plug.
LSU 4.9 Pin 2	Vm (Virtual Ground)	Yellow	Reference junction between Nernst sensing cell and pump cell.
LSU 4.9 Pin 3	H- (Heater Low-Side PWM)	White	Low-side synchronous PWM heater driver (max 2.5A warmup).
LSU 4.9 Pin 4	H+ (Heater +12V Supply)	Grey	Fused 10A switched ignition supply (enable only with engine running).
LSU 4.9 Pin 5	Rtrim (Calibration Trim)	Green	Laser-trimmed factory calibration resistor inside sensor connector.
LSU 4.9 Pin 6	Un (Nernst Voltage)	Black	450 mV target Nernst potential for stoichiometric feedback.

Interactive Calibration & Sizing Workbench

Injector Sizing, BSFC & Bosch 200 Pump Head Calculator

Compute required static injector flow (cc/min) and high-pressure fuel pump capacity across Petrol 98, E85 ethanol, and Methanol using Bernoulli square-root rail pressure scaling.

Target Flywheel Power (HP)

Engine Cylinders

Fuel Stoichiometry & BSFC Profile

Max Safe Injector Duty Cycle (%)

Base Differential Rail Pressure (Bar)

Peak Manifold Boost Pressure (Bar Gauge)

Q_new = Q_rated × √(P_new / P_rated) | P_pump_total = P_base + P_boost

Req. Flow @ Rail Pressure 1050 cc/min

Nominal 3.0 Bar Injector 972 cc/min @ 3.0 Bar

Total Fuel Pump Demand 213.4 L/h

Reference Hardware: Bosch 200 External Fuel Pump (0 580 254 044, $200.60 NZD Archive) delivers 275 L/h @ 3.0 Bar and 235 L/h @ 5.0 Bar total head.

Two-Point 0–5V Ratiometric MAP Pressure Calibration Generator

Generate a 9-point linear voltage-to-kPa calibration table for Emtron KV/SL, Link G4X, and Haltech NSP ECUs. Default preset matches the HV 4-Bar MAP Sensor (HV-MAP-400-NPT).

View Full JSON Spec

Linear Transfer Equation P(kPa) = 95.00 × V - 27.50

Expected Sea-Level Key-On 1.34 V @ 100 kPa Baro

ECU Input Configuration 5.0V Ratiometric · Pull-Up OFF

AN Volt (V)	Absolute (kPa)	Absolute (Bar)	Relative Gauge (psiG)

Lambda (λ) ↔ AFR Multi-Fuel Converter & 1 Mbps CAN Frame Decoder

Convert wideband equivalence ratio (λ) across Petrol, E85, and Methanol, and decode raw 8-byte Big-Endian hexadecimal CAN frames from the HVLC2 Dual Lambda ($555 NZD) and HV EGT CAN ($483 NZD) modules.

AFR_fuel = λ × AFR_stoich | CAN Word = (Byte_MSB << 8) | Byte_LSB

Petrol (14.7) & Methanol (6.47) 12.05 : 1 (Petrol)

Pump / Race E85 (Stoich 9.76) 8.00 : 1 (E85)

Decoded 16-Bit CAN Channels Ch1 λ=0.820 | Ch2 λ=0.850 | EGT=900°C

Lambda (λ)	Petrol 98 (14.70:1)	E85 Ethanol (9.76:1)	Methanol (6.47:1)	Operating Regime
0.75 λ	11.03 : 1	7.32 : 1	4.85 : 1	High-Boost Rich Thermal Protection (>2.0 Bar)
0.82 λ	12.05 : 1	8.00 : 1	5.31 : 1	Peak Torque WOT Turbocharged Target
0.88 λ	12.94 : 1	8.59 : 1	5.69 : 1	Naturally Aspirated WOT Peak Power
1.00 λ	14.70 : 1	9.76 : 1	6.47 : 1	Closed-Loop Stoichiometric Cruise

Tefzel MIL-W-22759 Voltage Drop & Raychem DR-25 Bundle Calculator

Calculate round-trip DC voltage drop across tinned-copper MIL-W-22759/16 & /32 ETFE motorsport wire and select the matching 2:1 Raychem DR-25 fluoroelastomer heat-shrink sleeve.

Round-Trip Voltage Drop (ΔV) 1.165 V (8.44% @ 13.8V)

Recommended Raychem DR-25 Size DR-25-3/8 (9.5 / 4.8 mm)

Insulation Rating 150°C ETFE · 600V RMS

AWG Size	Stranding	Resistance @ 20°C	Nominal OD	Bundle Max Current
22 AWG	19/34 Tinned Cu	51.5 mΩ/m	1.32 mm	5.0 A (Sensors / Triggers)
20 AWG	19/32 Tinned Cu	32.0 mΩ/m	1.52 mm	7.5 A (Injectors / Solenoids)
18 AWG	19/30 Tinned Cu	20.3 mΩ/m	1.78 mm	10.0 A (Ignition Coils / LSU 4.9)
12 AWG	37/28 Tinned Cu	6.3 mΩ/m	2.92 mm	25.0 A (Bosch 200 Fuel Pump)

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