HV EGT CAN Module — Type-K Thermocouple to 1 Mbps CAN-Bus — Calibration Table, Pinout & Archive Spec
The HV EGT CAN Module (HV-EGT-CAN-01, archived at $483.00 NZD) digitizes Type-K (Chromel-Alumel) exhaust gas thermocouple microvolt signals with internal cold-junction compensation and broadcasts 16-bit temperatures over 500 kbps or 1.0 Mbps CAN-Bus at 50 Hz (0°C to 1,250°C), freeing analog inputs on Emtron and MoTeC ECUs.
ECU Calibration & Scaling Reference Table (HV EGT 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 |
|---|---|---|---|
| Base ID 0x1E0 | Bytes 0–1 (UInt16 BE) | 0.1 °C/bit, -100°C offset | Cylinder 1 EGT (0.0 to 1250.0 °C) |
| Base ID 0x1E0 | Bytes 2–3 (UInt16 BE) | 0.1 °C/bit, -100°C offset | Cylinder 2 EGT (0.0 to 1250.0 °C) |
| Base ID 0x1E0 | Bytes 4–5 (UInt16 BE) | 0.1 °C/bit, -100°C offset | Cylinder 3 EGT (0.0 to 1250.0 °C) |
| Base ID 0x1E0 | Bytes 6–7 (UInt16 BE) | 0.1 °C/bit, -100°C offset | Cylinder 4 EGT / Cold Junction Status |
| Fault Value 0xFFFF | 65535 Raw | Open Circuit Flag | Triggers ECU EGT Sensor Fault Protection |
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 |
|---|---|---|---|
| DTM Pin 1 | +12V Switched Ignition | Red (20 AWG) | Fused 3A clean switched 9–16V DC supply. |
| DTM Pin 2 | Power & Logic Ground | Black (20 AWG) | Chassis / ECU power ground reference. |
| DTM Pin 3 | CAN High (CAN_H) | White (22 AWG Twisted) | Twisted pair (≥35 twists/m) to ECU CAN1/CAN2 High. |
| DTM Pin 4 | CAN Low (CAN_L) | Blue (22 AWG Twisted) | Twisted pair to ECU CAN1/CAN2 Low (120 Ω bus termination at ends). |
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.
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).
| 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.
| 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.
| 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) |