14Point7 Spartan 3 Wideband Lambda Controller Kit

Original price was: £211.26.Current price is: £206.75. inc. VAT

14Point7 Spartan 3 Wideband Lambda Controller Kit

The Spartan 3 wideband lambda controller from 14Point7 adds CAN Bus output for use with ECUs including Megasquirt 3, Link, and any other standalone with CAN Bus input. The fuel mixture can be read from 8.82 AFR rich to over 50 AFR lean, providing greater control of your tune. Separate grounds for sensor heater and electronics reduce noise and improve voltage protection, increasing the accuracy of the sensor. An option to delay the sensor from heating for up to 10 minutes whilst exhaust gases increase the sensor temperature to 350°C prevents the sensor from being damaged during startup, extending sensor life.


  • 10ms Response Time
  • 1x Programmable Linear voltage output for Lambda/AFR/%Oxygen
  • 1x simulated narrowband output
  • Compatible with Bosch LSU 4.9 and Bosch LSU ADV sensors
  • Lambda range of 0.6 Lambda to 3.4 Lambda, equivalent to 8.82 AFR to 50 AFR for gasoline
  • %O2 range of 0%O2 to 21%O2
  • Lean Burn mode for lean burn applications
  • CAN Bus support for the following ECUs; Megasquirt 3, Adaptronic, Link, Haltech, as well as YourDyno dyno controller are supported. More supported devices coming soon via firmware update
  • CAN Bus output of Lambda or %O2
  • Smart Heatup; RPM Triggered Heating of the oxygen sensor for MS3 ECU.
  • Smart Heatup; Temperature Triggered Heating, Spartan 3 will wait for the Oxygen sensor to be heated to 350C by engine exhaust gas before heating up the sensor
  • Does not require Free Air Calibration but FAC is available. Recommended only for clone LSU 4.9 sensors
  • Compatible with Torque OBD for Android to display AFR
  • Onboard FTDI based serial-USB converter
  • ARM Cortex M4
  • 0.1% tolerance components for all components that affect accuracy
  • 4 layer Printed Circuit Board
  • Separate grounds and power connections for LSU Heater and electronics for improved noise performance and improved voltage protection
  • 2-year warranty

Additional information




Mk1 (89-98), Mk2 (98-05), Mk3 (05-15), Mk4 (15-24)

Warranty information

Warranties cover defects in materials and workmanship only. Warranty is for replacement of a similar product, repair of the original product or refund of the purchase value only and excludes all labour and incurred charges including towing, fitting, inconvenience, and purchases of other manufacturer's products. The warranty is good for the period stated in the additional info tab from the date of purchase. Mileage warranties are for road use only and proof of mileage is required. Products must be installed by an independent experienced professional mechanic and the suspected defect must be present at the outset. The warranty does not cover damage caused by incorrect installation, failure to comply with the maintenance requirements of the vehicle, processing or otherwise changing the product, ordinary wear and tear, or any other external influences. Warranties are invalid if the product is used for racing, rallying, drifting, track days or any other form of motorsport or competition. Please refer to the manufacturer's own warranty documentation for more information.

Making a warranty claim

Proof of purchase receipt showing the date of purchase, proof of mileage at installation, proof of current mileage and invoice of the work undertaken by an independent experienced professional mechanic must be supplied along with the returned products for a warranty claim to be considered. If your vehicle needs to be used whilst your warranty claim is considered replacement parts from the same manufacturer should be purchased through BOFI Racing. In the event of a successful warranty claim, we will refund the card that was originally used to purchase the replacement parts, in full or in part depending on the nature of the claim. BOFI Racing reserves the right to make full or partial compensation at its sole discretion depending on the condition and mileage use of the returned suspect parts. For example, if you have used the part for several thousand miles before a defect is noticed, only partial compensation may be offered.

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