Our Classic Fuel Injection systems are E10 fuel compatible

This listing is for Bosch LSU 4.9 sensor only

Classic Fuel Injection

The well respected Wide Band O2 ( Oxygen sensor ) from Bosch.

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

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 Bosch sensor only, either buy the separate 14point7 Amplifier or buy the combined amp and sensor set in our other listing

Classic Fuel Injection - WideBand O2 Sensor - Bosch LSU 4.9 - Exhaust Lambda Oxygen

  • Brand: Bosch
  • Product Code: CFI-WB02-A
  • Availability: 5
  • £60.00

  • Ex VAT: £60.00

Tags: 14point7, Bosch LSU 4.9


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.