When I got my belts changed a couple of months ago at SWR Stirling I had the EML light on my dash lit. I got the car hooked up to the computer and the fault was traced to the post cat Lambda sensor and I was advised to replace the unit. Fast forward to today and I finally managed to get the sensor replaced along with the pre cat for good measure. The sensors were Bosch items from ECP (part no. 710745575) Got them fitted and started the car up however the light has remained on. Took the car for a quick drive to see if it would clear but no such luck. Can anyone shed some light as to where to go from here?