Our Classic Fuel Injection systems are E10 fuel compatible

Classic Fuel Injection

The well respected Spartan 3 Lite Wide Band O2 Amplifier from 14point7.

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.

We can currenty offer a choice of  three different Lambda sensors

 Bosch LSU 4.9 Branded 14Point7 = Lead length approx. 300mm

 Bosch LSU 4.9 Branded 14Point7 = Lead length approx. 450mm

 Bosch LSU 4.9 Compatible Branded DIY EFI = Lead length approx. 1000mm

Although compatible it is fitted with correct value calibration resistors ( unlike most clone parts ) so is fully interchangeable with Bosch original parts


Just leave comment in checkout page as to which sensor you prefer otherwise we will just select one from stock

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

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.


This listing is for both the Spartan 3 Amplifier and the Bosch sensor.

Combined WideBand O2 Spartan 3 Lite - Amplifier and Sensor - Exhaust Lambda Oxygen from 14point7

  • Brand: 14point7
  • Product Code: spartan3litecombo
  • Availability: 10
  • £140.00

  • Ex VAT: £140.00

Tags: Classic Fuel Injection - Combined WideBand Spartan 3 O2 Amplifier and Sensor 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.