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.

Spartan 3 Lite v2 is a purebred Wideband Oxygen Controller for the Bosch LSU 4.9 and LSU Adv Wideband sensor with no excess.

Spartan 3 Lite v2 is equipped with both a programmable analog Linear Output and programmable Simulated Narrowband Output that is compatible with most gauges, ECUs, dataloggers, etc.

The advanced design, highest quality components, and extensive factory calibration means 0.01 Lambda accuracy without the need for any calibration.

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.

Easy install; Spartan 3 Lite v2 is made durable and water-resistant to be installed in the engine bay, most installations require only 4 wires.

14Point7 stands behind this product with a warranty that is twice as long as any competing product, 2 years

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 or 10-Color Configurable Gauge
Can use our Perfect Tuning CAN gauge instead of Solid or 10-Color Configurable AFR Gauge to add additional features and programmable I/O's
If you want to run dual widebands, you need two controllers and two sensors. Can run zero, one, or two gauges.

Features:

10ms 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 High Performance Programmable Analog Output, default is 0-5v 10-20 AFR Linear Output
1x Programmable simulated narrowband output
Compatible with Bosch LSU 4.9, Bosch LSU ADV, and clone LSU 4.9 sensors. The LSU ADV sensor provides a 20x resolution increase over the LSU 4.9. Pre-programmed for LSU 4.9 sensor
Spartan 3 Lite V2 does not have CAN Bus
Lean Burn mode for lean burn applications
Smart Heatup - RPM Triggered Heating of the oxygen sensor for MS3 (PiMPx/PiMPxs/PiMPxshift) ECU over CAN
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 it is available. Recommended only for clone LSU 4.9 sensors
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
Output Sequencer provides a dual-level precision voltage signal to the Linear Output. This allows you to easily check that the AFR/Lambda seen by any device connected to the Linear Output is accurate, and if not, to generate a 2 point calibration to achieve perfect accuracy.
Sensor Heater Status LED Output (LED included) allows the tracking of sensor temperature.
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
Water, Dust, and Dirt Resistant - Can be installed in the engine bay
Compact Inline Design
2-Year Controller Warranty, 3 Month Sensor Warranty
60-day Money Back Guarantee

Additional Features + Specifications:

8 ft Cable Length
Total Length with LSU 4.9 Sensor: 9.5 ft
Operating Temperature: -40C to +105C (-40F to +221F)
Response Time: 10ms
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)
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: