Direct-fit & Universal Oxygen Sensor Application List

Also known as O2 sensors, HEGO sensors, Lambda sensors

Model	Engine Code	Chassis	Years	Price  inc VAT and P&P = in stock
Citroen Xsara 1.4i				Direct-fit		Universal
Xsara 1.4i 8v 75bhp	TU3JP		10/2000 onward	£ 39.95		£ 24.95
Xsara 1.4i 8v 75bhp	TU3JP	Post CAT	3/1999 to 10/2000	£ 49.94		£ 24.95
Xsara 1.4i 75bhp	TU3JP (KFW)	N1, N2	7/1997 onward			£ 24.95
Xsara 1.4i 75bhp (Post Catalytic Convertor)	TU3JP (KFW)	N1, N2	7/1997 onward			£ 24.95
Xsara 1.4i 75bhp	TU3JP (KFX)	N1, N2	7/1997 onward			£ 24.95
Xsara 1.4i 8v 75bhp	TU3JP (KFX)		7/1997 to 5/1998	£ 56.95		£ 24.95

Pre-cat / Post-cat? What does that mean?

• There will be at least one sensor at the front of the vehicle, mounted into the exhaust pipe or manifold somewhere before the catalytic convertor.
  This is known as the front, pre-cat or upstream sensor.
  V-type engines (V6, V8 etc) will often have one pre-cat sensor for each bank of cylinders.
  
  
• There will then be another sensor positioned after the catalyst, known as the rear, post-cat or downstream sensor.
  Under normal circumstances, the rear sensor does not have any direct impact on the fuel mixture (and therefore the running and emissions of the engine) - it is there to offer a comparison value after the catalyst, allowing the car to monitor the performance of the cat.