Our Classic Fuel Injection systems are E10 fuel compatible

Classic Fuel Injection

The well respected Spartan 2 Wide Band O2 Amplifier from 14point7.

Spartan 2 only available until current stock is exhausted as it has since been replaced with Spartan 3 Lite ( See other listing )

Used with our own CFI Classic Fuel injection system but can also be used with many other systems

This is one of the best Wide Band systems available on the market and can also be used for many other fuel injection applications in addition to our own.

it operates form 10:1 AFR to 20:1 AFR The output is linear 5 volt as per industry norm.

Feel free to purchase one of these wideband oxygen sensor systems to use with your own fuel injection application or if you are upgrading an existing system
It is with the help of this clever piece of kit that our Classic Fuel Injection system self learns when the vehicle is driven, so whilst not essential to our CFI kits it is highly recommended.

Spartan 2 utilizes the Bosch LSU 4.9 Wideband O2 Sensor - a cost efficient Wideband O2 sensor providing 0.01 Lambda accuracy, fast response, and rated life of 100,000 km

Compatible with all fuels
AFR/Lambda range, 0.68[Lambda] to 1.36[Lambda], 10[AFR] to 20[AFR] equivalent for gasoline
0.01 Lambda accuracy without the need for any calibration

Utilizes our patent pending Binary Drive technology; no other system is more digital

Linear Output allows easy interfacing with gauges, fuel management systems, and data-loggers
Linear Output: 0[V] @ 0.68[Lambda] linear to 5[V] @ 1.36[Lambda], 10[AFR] linear to 20[AFR] equivalent for gasoline

Spartan 2 works with Bosch genuine LSU 4.9 sensors and also with compatible sensors if they have the correct calibration resistor factory fitted.

( The cheap clone sensors tend not to have the correct resistor fitted so will not dispaly accurate results )

All sensors that we stock are Bosch geniuine or a proven and tested compatible products


This listing is for Amplifier only, either buy the separate Bosch sensor or buy the combined amp and sensor set in our other listing

Classic Fuel Injection - WideBand O2 Amplifier - 14.7 Spartan 2 - Exhaust Lambda Oxygen

  • Brand: 14point7
  • Product Code: CFI-WBamp
  • Availability: 5
  • £80.00

  • Ex VAT: £80.00

Tags: Spartan 2, WideBand O2 Amplifier, 14point7


These kits are only suitable for vehicles with a Negative Earth electrical system.
If your vehicle is the older Positive Earth then you must convert the vehicle to Negative Earth before fitment.
Many older vehicles have already been converted but if you need to convert this is normally a simple process often cost free.

The full vehicle kits will normally be supplied with the ECU pre loaded with an initial start file.

This initial start file is simply provided as an aid for engine starting, it should not be considered a suitable final calibration for your engine.
You must be prepared to undertake further ECU calibration work to ensure the ECU files are tailored to your vehicle.
Failure to successfully complete the calibration process may lead to poor vehicle driveability or even damage to your engine.

Our Classic Fuel Injection Kits are custom built to order and to the customer general specification and as such are exempt from automatic return rights under Consumer Contract regulations.
By ordering this conversion kit you understand that further ECU calibration work will be required and the final results are outside of our control.
We cannot accept returns or claims arising from failure to successfully complete the calibration process.