CM5-MiniOEM - Single-Pump WMI Controller Board
Torqbyte Inc.
Please Contact Us for Availability
- Designed for WMI kit manufacturers and custom builders seeking to integrate competitively priced, market-proven 3D-mapped pump control into their own kits
- Minimum Order Quantity: 12 Boards
- Controls 1 Water Methanol Injection (WMI) pump in forced induction gasoline or diesel setups
- Industry’s first 3D mapped PWM duty control based on Engine RPM and Boost - not available with typical "progressive" controllers
- 4 General Purpose Outputs (GPOs) can be used for controlling boost control solenoids, anti-siphon solenoids, Fast Acting Valves (FAVs), auxiliary high-impedance injectors, staged injection solenoids, lamps, relays, indicator LEDs, or 3rd party Electronic Boost Controllers (EBCs)
- Each of the CM5-MiniOEM's five outputs can be independently configured through a dedicated 16x16 duty table
- CANBus integration allows injection control based on parameters obtained from the vehicle's internal CAN network
- Controller can also transmit its internal data via CANBus to aftermarket ECUs or CAN Gauge Displays
- Ideally suited for Direct Injection or Staged water methanol setups
- Advanced built-in safety features based on optional flow sensors or pump current not available on rudimentary "knobs and switches" WMI controllers
- Fully-customizable operation with easy-to-use TorqTune2 PC software
- TorqTune2 software also provides real-time data viewing, data logging and data playback of all system parameters for unprecedented ease of system tuning
- Designed, tested and manufactured in Canada
The Torqbyte CM5-MiniOEM lets Water Methanol Kit Integrators leverage Torqbyte’s sophisticated 3D-mapped PWM control and industry-leading TorqTune2 software—the result of extensive development—seamlessly into their own water methanol injection kits and product lines.
It drives one individually-controllable water methanol injection (WMI) pump and up to four individually controllable anti-siphon solenoids, Fast Acting Valves (FAVs), auxiliary high impedance injectors, relays, light indicators, or any combination thereof. The CM5-MiniOEM pump output supplies up to 18A to the connected WMI pump.
CM5-MiniOEM Board
Supplied as an electronic circuit board only. Smaller dimensions and lower cost compared to CM5-LTS. No housing or wiring provided. Minimum order quantity: 12 boards.
CM5-MiniOEM maintains the same Input/Output pinout as the CM5-LTS ensuring full compatibility with the CM5-LTS wiring.

Recommended Hardware
The following additional hardware is recommended to be used in the final WMI Kit assembly:
| Qty. | Manufacturer | Mfg. Part No. | Description | Link |
| 1 | Littelfuse | FHAC0003ZXJB | In-Line Fuse Holder | Link |
| 1 | Littelfuse | 0287025.PXS | 25A Fuse | Link |
| 3 | Molex | 19164-0044 | Splice, Sealed, Blue, 14AWG | Link |
| 1 | Molex | 64016-0041 | Manual Crimper for Sealed Splices | Link |
| 1 | TE | 130090 | Ring Terminal, M5, 14AWG | Link |
| 1 | TE | 320563 | Ring Terminal, M6, 14AWG | Link |
| 1 | TE | 320575 | Ring Terminal, M8, 14AWG | Link |
| 1 | TE | 58433-3 | Manual Crimper for Ring Terminals | Link |
| 1 | Cvilux USA | DH-20M50052 | USB-C/A Cable, 1m (3ft) Long | Link |
The following drawing shows an example of an Input/Output Wiring Harness that could be used in the final WMI Kit assembly. This wire harness design can be used as-is or be modified to suit.
| Connector Reference |
INPUT/OUTPUT |
| Mating Connector Housing (Molex) | 1729522001 |
| Contact Retainers (Molex) | 1729532001 (Need Qty. 2) |
| Crimp Contact (Molex) | 430300008 |
| Contact Durability | 30 Mate/Unmate Cycles |
| Manual Crimper (Molex) | 638190000 |
| Wire Gauge | 20AWG |
| Wire Type |
TXL-20 |
| Wire Strip Length | 2.73mm 0.107" |
The following drawing shows an example of an Input/Output Wiring Harness that could be used in the final WMI Kit assembly. This wire harness design can be used as-is or be modified to suit.
| Connector Reference |
POWER IN PUMP OUT |
| Mating Connector Housing (Molex) |
444412004 |
| Contact Retainers (Molex) | None |
| Crimp Contact (Molex) |
433751001 |
| Contact Durability | 25 Mate/Unmate Cycles |
| Manual Crimper (Molex) |
638117300 |
| Wire Gauge | 14AWG |
| Wire Type |
SXL-14 |
| Wire Strip Length | 4.75mm 0.187" |
3D STEP file of the CM5-MiniOEM Circuit Board is provided below for customers wishing to design their own controller enclosure from scratch. Please note that the enclosure must be made from a non-conductive material.
3D STEP file of the CM5-MiniOEM Simple 2-Piece Enclosure is provided below for customers wishing to 3D print or machine their own plastic enclosure. Table below shows some additional hardware that is required for final mechanical assembly if the provided enclosure design is used.
| Qty. | Manufacturer | Mfg. Part No. | Description | Link |
| 4 | Bivar | LFB075CTP | Light Pipe | Link |
| 4 | Bivar | RTN112 | Light Pipe Retainer | Link |
| 4 | McMaster | 90380A115 | Plastite Self-Threading Screw | Link |
Optional Input / Output Expansion Module
CM5-MiniOEM can interface with up to 2 flow sensors, an optional dash-mounted LCD display (or gauge), 0-5V analog inputs or the vehicle's CANBus network.
This additional functionality can be accessed via the optional I/O Expansion Module.
CM5-MiniOEM Technical Info
| Operating Temperature | -40°C to +60°C -40°F to +140°F |
| Overall Dimensions | 120mm x 60mm x 20mm 4.75" x 2.4" x 0.8" |
| Mounting Hole Pattern | 114mm x 54mm |
| Weight | 55g |
| Current Rating (MAIN) | 18.0 A |
| Current Rating (GPO1,2,3,4) | 1.25 A |
| PWM Frequency (MAIN) | 10kHz or 20kHz (Software Selectable) |
| PWM Frequency (GPO1,2,3,4) | 20Hz-30Hz (Selectable in 1 Hz Increments) |
Genuine Honeywell MAP Sensor for CM5-LTS
Genuine Honeywell Heavy-Duty MAP Sensor
Kit Option Includes:
- 6 Bar, 50 PSI or 100 PSI Absolute Pressure Sensor with a 1/8" NPT Male Thread
- Anodized Aluminum barbed hose fitting for 5/32" (4.0 mm) ID Vacuum Hose
- Factory-terminated CM5-LTS Input/Output Harness with a genuine Sealed 3-Position Delphi/Aptiv Metri-Pack 150 Connector
Sensor Linear Transfer Functions:
0.5V = 0 Bar (0 PSI) absolute
4.5V = 6 Bar
Maximum Measurable Boost: 72 PSI (496 kPa)
TorqTune Settings
Slope: 9.404
Intercept: 102.3
Atmosphere: 102
.:: NEW ::. TorqTune2 Settings
Slope: 150000
Intercept: 176325
Atmosphere: 101325
0.5V = 0 PSI (0 kPa) absolute
4.5V = 50 PSI
Maximum Measurable Boost: 35 PSI (241 kPa)
TorqTune Settings
Slope: 16.368
Intercept: 342.84
Atmosphere: 343
.:: NEW ::. TorqTune2 Settings
Slope: 86185
Intercept: 144417
Atmosphere: 101325
0.5V = 0 PSI (0 kPa) absolute
4.5V = 100 PSI (690 kPa)
Maximum Measurable Boost: 85 PSI (586 kPa)
TorqTune Settings
Slope: 8.184
Intercept: 222.57
Atmosphere: 223
.:: NEW ::. TorqTune2 Settings
Slope: 172369
Intercept: 187510
Atmosphere: 101325
Standard I/O Expansion Module for CM5-LTS
This module plugs into the CM5-LTS wiring and breaks out the following optional signals:
- CANBus
- Dash-Mounted LCD Display or Gauge
- Analog A and B 0-5V Inputs
- Torqbyte A and B Flow Sensors
Jumpers inside the module can be used to select if the CANBus is locally terminated or not and whether the Flow Sensor or an external 0-5V voltage are fed into the unit's analog inputs.
I/O Expansion Module is packaged in a durable 2-piece CNC-machined and hard anodized enclosure.
Dimensions: 3.27" (83mm) x 13.8" (35mm) x 0.71" (18mm)
Wiring Not Included (but can be provided upon request)
Connector Information
CANBus
3POS (Single Row)
1x Molex 1718500300 (Housing with TPA)
Analog Input
4POS (Single Row)
1x Molex 1718500400 (Housing with TPA)
Gauge Output
4POS (Dual Row)
1x Molex 1729520401 (Housing)
2x Molex 1729530401 (TPA)
Flow Sensor
6POS (Dual Row)
1x Molex 1729520601 (Housing)
2x Molex 1729530601 (TPA)
Crimp Contacts (20AWG Wire)
Molex 43030-0002 (Reel)
Molex 43030-0008 (Loose)
Recommended Hand Crimper
Molex 63819-0000
Recommended Wire: TXL-20 (20AWG)
Recommended Wire Strip Length: 2.7mm (0.11")
WMI Flow Sensor - Badger Meter
- Measurement Range: 0 - 1500 cc/min
- Converts fluid flow rate to a 0-5.0V signal compatible with the CM5-LTS analog inputs.
- Plug-n-Play operation with the CM5-LTS I/O Expander.
Torqbyte flow sensor kit is equipped with inline electronics that convert the pulse train from the flow sensor element into a variable DC voltage that can be applied to the CM5-LTS controller, aftermarket ECUs and data loggers.
The transfer function of the Torqbyte flow sensor kit is shown below.

The pinout of the Torqbyte flow sensor kit is shown below.

When using the flow sensor with a Torqbyte I/O Expander, the jumper(s) for the corresponding analog input channel A and/or B where the sensor is plugged into must be moved into position towards the large 12 Pin connector as follows:

Sensor OEM: Badger Meter
Sensor Part No. BV1000-TRN-025-A
Fluid Connection: 1/4" NPT - Male
Wetted Parts: Trogamid, PPS Ferrite, Graphite/PTFE
Output Voltage Scale Factor: 3mV/cc/min
Sensor Datasheet
WMI Flow Sensor - Equflow
- Measurement Range: 0 - 1500 cc/min
- Converts fluid flow rate to a 0-5.0V signal compatible with the CM5-LTS analog inputs.
- Plug-n-Play operation with the CM5-LTS I/O Expander.
Torqbyte flow sensor kit is equipped with inline electronics that convert the pulse train from the flow sensor element into a variable DC voltage that can be applied to the CM5-LTS controller, aftermarket ECUs and data loggers.
The transfer function of the Torqbyte flow sensor kit is shown below.

The pinout of the Torqbyte flow sensor kit is shown below.

When using the flow sensor with a Torqbyte I/O Expander, the jumper(s) for the corresponding analog input channel A and/or B where the sensor is plugged into must be moved into position towards the large 12 Pin connector as follows:

Sensor OEM: Equflow
Sensor Part No. 0045TNP01XA
Fluid Connection: 1/8" NPT - Male
Wetted Parts: PFA, Ruby
Output Voltage Scale Factor: 3mV/cc/min
Sensor Datasheet
Fused Power/Ground Kit for CM5-LTS
Kit Option Includes:
- Genuine Littelfuse automotive JCASE fuse holder with 10AWG (5.0mm^2) wires
- Genuine Littelfuse automotive 40A fuse (low profile)
- Genuine TE Connectivity PIDG Ring Terminals (2x M6, 1x M5 and 1x M8)
- Genuine Molex/TE PermaSeal/DuraSeal 10-12AWG Wire Splice
Auxiliary Pump Harness for CM5-LTS
Supplied with 2 Blue Molex/TE PermaSeal/DuraSeal 16-14AWG wire splices (not shown)
Length: 14ft (425cm)
Wire: 14AWG Automotive SXL Wire
Direct Universal CANBus Adapter for CM5-LTS – Standard Length
Mates Directly with the CM5-LTS Harness
Note: Optional CM5-LTS I/O Expander Module is Not Required
Length: 5ft (1.5m)
Wire: 20AWG Automotive TXL Wire
Expansion Universal CANBus Adapter for CM5-LTS - Standard Length
Mates Directly with the CM5-LTS I/O Expansion Module
Standard length is ideal for setups where the controller and the CAN gateway are installed at the same end of the vehicle (e.g. both under the dash or both in the trunk)
Length: 5ft (1.5m)
Wire: 20AWG Automotive TXL Wire
Expansion Universal CANBus Adapter for CM5-LTS - Extended Length
Mates Directly with the CM5-LTS I/O Expansion Module
Extended length is ideal for setups where the controller and the CAN gateway are installed at opposite ends of the vehicle (e.g. dash and trunk)
Length: 11.5ft (3.5m)
Wire: 20AWG Automotive TXL Wire
Expansion VAG CANBus Gateway PnP Adapter for CM5-LTS - Standard Length
Plug-n-Play solution for obtaining RPM and Boost directly from the vehicle's CANBus Gateway. Compatible with 2016+ Audi A3/S3/RS3 and Mk7 Golf GTI, Golf R models.
Mates Directly with the CM5-LTS I/O Expansion Module
Standard length is ideal for setups where the controller and the CAN gateway are installed at the same end of the vehicle (e.g. both under the dash or both in the trunk)
Length: 5ft (1.5m)
Wire: 20AWG Automotive TXL Wire
CAN-Enabled I/O Expansion Module for gaugeART Gauge
Note: Although it looks the same, the I/O Expansion Module in this kit is not the same as the Standard CM5-LTS I/O Expansion Module (the boards inside are different).
The unterminated Orange wire controls the gauge's dimming function. When connected to +12V the gauge dims. When it's left unconnected the gauge operates at the maximum brightness.
Important: The Terminator Jumper on the back of the gauge must be installed.

Length: 5ft (1.5m)
Wire: 20AWG Automotive TXL Wire
52mm gaugeART Gauge
The gaugeART CAN Gauge is an innovative compact OLED gauge for displaying real-time data from your CM5-LTS.
The gauge interfaces with the CM5-LTS through a CAN-Enabled I/O Expansion Module and special 1.5m/5ft long harness supplied by Torqbyte.
Supported CM5-LTS parameters below can be displayed on the gauge.
- Engine Speed (RPM)
- General Purpose Input (GPI) 1 State
- General Purpose Input (GPI) 2 State
- Analog A Trigger State
- Analog B Trigger State
- MAIN Current Trigger State
- AUX Current Trigger State
- MAP Input Raw (ADC Counts)
- MAP Voltage (V)
- Boost (PSIg)
- Boost (mBARg)
- Analog A Input Raw (ADC Counts)
- Analog A Voltage (V)
- Analog A Input as Flow (mL/min)
- Analog B Input Raw (ADC Counts)
- Analog B Voltage (V)
- Analog B Input as Flow (mL/min)
- MAIN Current Raw (ADC Counts)
- MAIN Current (A)
- AUX Output Current Raw (ADC Counts)
- AUX Output Current (A)
- MAIN Output Duty (%)
- AUX Output Duty (%)
- General Purpose Output (GPO) 1 Duty (%)
- General Purpose Output (GPO) 2 Duty (%)
- General Purpose Output (GPO) 3 Duty (%)
- General Purpose Output (GPO) 4 Duty (%)
- Battery Input Raw (ADC Counts)
- Battery Voltage (V)
The high contrast OLED display is bright for interior use and dims at night. You can configure 1, 2, or 4 gauge layouts on up to 10 different pages. Create customizable warning points, which trigger a special warning screen and bright LED on the face of the gauge.
The gauge can be easily customized to display the data you want to view with the free gaugeART CAN Gauge App (compatible with Android 4.4 or later and Apple iOS). The easy-to-use app works with your smartphone or tablet to wirelessly customize your gauge layouts in minutes.

Direct VAG CAN Gateway PnP Adapter for CM5-LTS - Standard Length
Plug-n-Play solution for obtaining RPM and Boost directly from the vehicle's CANBus Gateway located under the dash directly above the steering wheel universal joint.
Compatible with 2016+ Audi A3/S3/RS3 and Mk7 Golf GTI, Golf R models.
Both Boost and RPM can be logged using our free TorqTune2 software and related to other logs captured with other tuning tools.
Standard length is ideal for setups where the controller is installed under the dash or in the glove box.
Mates Directly with the CM5-LTS Harness
Note: Optional CM5-LTS I/O Expander Module is Not Required
Length: 5ft (1.5m)
Wire: 20AWG Automotive TXL Wire





