[tiprat]

Hi guys the wifes Rav4 " Y reg 2001 2lt NRG 4x4 petrol" has just failed its MOT the Lamda sensor reading was 1.75 instead of 0.3 so I need to replace the sensor. Firstly which sensor do I replace and where is it? And if I get one

 

[Chambers]

There are a handfull of o2 sensors on the RAV, here is an ebay listing that has all four that are on the header/cat: TOYOTA RAV4 2.0 VVTI 1AZFE O2 OXYGEN SENSORS PRE CAT POST CAT LAMBDA SENSORS 4 | eBay