Hi,
I have been running a 2002 A3 1.8SE for the past 15 years with very little trouble. I recently had the cam belt, tensioners and water pump replaced as it was about due. Since then I have had the Engine management light illuminate and the car went into limp mode. I took it to a reliable garage who diagnosed a faulty EGR valve which they replaced. About 120 miles later the engin management light came on again and I took the car back to the garage who ran diagnostics. They infomed me that it was most likely because of a faulty Catalytic Converter but that it wouldnt be economical to replace it to run the car until the next MOT and that the car wouldnt go into limp mode because of the issue. I drove about 10 miles down the road and the car went into limp mode again. Can anyone please confirm if a faulty catalytic converter would cause the car to go into Limp mode please. Having just spent considerable money on the cam belt and a new EGR valve I am reluctant to throw good money after bad, much as I love the old girl.
Thanks in advance