Controller requires wideband sensor so this listing is for replacing a failed Spartan 3 Lite or Spartan 2 controller, or for those who already have a Bosch LSU 4.9 wideband sensor and need a controller. 

Go twice as fast! With a response time of just 7ms, Spartan 3 Lite V2 is more than twice as fast as any Wideband O2 Controller on the planet. Direct replacement for the discontinued Spartan 2.

Spartan 3 Lite V2 features the latest technologies; Bosch LSU 4.9 or LSU ADV Wideband Sensor.

Spartan 3 Lite V2 is designed with Megasquirt in mind, Megasquirt users can enjoy the most accuracy with Spartan 3 than with any other brand of Wideband Oxygen Controller through the use of the analog output for wiring to a gauge or ECU/Datalogger. 

• Standalone ECU's (Such as PiMP, PiMPx, PiMPxs, PiMPxshift, Microsquirt) require both the controller & sensor
• Controller requires Bosch LSU 4.9 Sensor for use (or LSU ADV sensor if you configure via serial terminal for that sensor).
• Available with and without Solid AFR Gauge
• If you want to run dual widebands, you need two controllers and two sensors
  
  Features:

• 7ms Response Time
• Compatible with Bosch LSU ADV and Bosch LSU 4.9 sensor. Bosch's newest sensor, LSU ADV, provides a 20x resolution increase over the LSU 4.9. Using LSU ADV sensor requires user to change the sensor settings using a serial terminal.
• 1x Programmable Linear voltage output
• 1x Simulated Narrowband output
  
• Spartan 3 Lite V2 does not have CAN Bus
• Lambda range of 0.6 (Lambda) to 3.4 (Lambda), equivalent to 8.82 (AFR) to 50 (AFR) for gasoline
• Analog Output Scale: 0v = 10.0:1 AFR, 5v = 20.0:1 AFR
• Smart Heat-up; Temperature Triggered Heating, Spartan 3 Lite v2 will wait for the Oxygen sensor to be heated to 662F by engine exhaust gases before heating up the sensor
• Does not require Free Air Calibration but it is available. Recommended only for clone LSU 4.9 sensors
  
• Serial Port
• ARM Cortex M4
• UART
• 0.1% tolerance components for all components that affect accuracy
  
• Programmable Linear Output for Increased Sensitivity in your Engine's Intended AFR Range, or to work with Multiple Gauges
• Separate grounds and power connections for LSU Heater and electronics for improved noise performance
  
• 4 layer Printed Circuit Board
• Water, Dust, and Dirt Resistant 
• 2-Year Controller Warranty
• 3-Month Wideband Sensor Warranty

Additional Features + Specifications:

• 8 ft Cable Length
• Total Length with LSU 4.9 Sensor: 9.5 ft
• Operating Temperature: -40F to 221F
• Response Time: 7ms
• Spartan 3 Lite V2 dimensions: 115mm x 60mm x 26mm
  

Includes:

• Spartan 3 Lite V2 Lambda Controller configured for LSU 4.9 Sensor with 8ft Cable Length (Controller to ECM)
• 2x Fuse Holder
• 2x 5 Amp Fuse (Replacement Included)
• Solid AFR Gauge (Optional)
• o2 Bung (Optional)
• o2 Bung Extra Tall Finned (Optional, provides additional sensor cooling when sensor is closer than 18" from turbo outlet or exhaust port)
  

Instructions & Documentation:

• Spartan 3 Lite V2 User Manual: CLICK HERE
• Perfecting Accuracy with PiMP or Megasquirt ECU's: CLICK HERE
• Perfecting Accuracy with PiMP or Megasquirt ECU's VIDEO: CLICK HERE